Find the derivative: g(x) = Sx 3 e^(t²-t)dt

Answers

Answer 1

The derivative of g(x) is g'(x) = [tex]-x e^(x²-x) + 3 e^3.[/tex]

To find the derivative of g(x) = ∫(x to 3) e^(t²-t) dt, we need to apply the fundamental theorem of calculus, which states that if a function f(x) is continuous on the closed interval [a,b] and F(x) is any antiderivative of f(x), then the definite integral of f(x) from a to b is given by F(b) - F(a).

Using this theorem, we can find g'(x) by evaluating the integral at the upper limit of integration (x=3) using the chain rule:

[tex]g'(x) = d/dx [∫(x to 3) e^(t²-t) dt][/tex]

= [tex]e^(3²-3) * d/dx[3] - e^(x²-x) * d/dx[x][/tex]

= [tex]-x e^(x²-x) + 3 e^(6-3)[/tex]

= -[tex]x e^(x²-x) + 3 e^3[/tex]

Therefore, the derivative of [tex]g(x) is g'(x) = -x e^(x²-x) + 3 e^3.[/tex]

In calculus, the derivative of a function measures how much the function changes as its input changes. It is defined as the limit of the ratio of the change in the function's output to the change in its input, as the change in the input approaches zero. Geometrically, the derivative represents the slope of the tangent line to the curve at a given point.

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Related Questions

Jenny's art classes cost her $27 per session in addition to a registration fee of $336. Ricky's art classes cost him a registration fee of $288 plus $35 per session. How many sessions would Jenny and Ricky each have to attend for the amount of money they spend on their art classes to be equal?

Answers

Jenny and Ricky each need to attend 6-sessions for the amount of money they spend on their art-classes to be equal.

Let number of sessions that Jenny and Ricky each have to attend be = "x",

We know that,

⇒ Jenny's art class cost-per-session = $27,

⇒ Jenny's registration fee = $336,

⇒ Ricky's art class cost per session = $35,

⇒ Ricky's registration-fee = $288,

We have to find number of sessions "x" at which total amount of money they spend on their art classes will be equal.

For Jenny:

⇒ Total cost of art classes = (Cost per session) × (Number of sessions) + (Registration fee),

So, Total cost for Jenny = 27x + 336,

For Ricky:

⇒ Total cost of art classes = (Cost per session) × (Number of sessions) + (Registration fee),

So, Total cost for Ricky = 35x + 288,

Equating the two expressions equal to each other,

We get,

⇒ 27x + 336 = 35x + 288,

⇒ 336 = 35x - 27x + 288,

⇒ 336 = 8x + 288,

⇒ 336 - 288 = 8x,

⇒ 48 = 8x,

⇒ 6 = x

Therefore, the number of required art classes are 6 sessions.

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what is the sum of all repetitions performed multiplied by the resistances used during a strength-training session?

Answers

The sum of all repetitions performed multiplied by the resistances used during a strength-training session is the workload.

To find the sum of all repetitions performed multiplied by the resistances used during a strength-training session, you would need to calculate the total workload.

This can be done by multiplying the number of repetitions for each exercise by the resistance used for that exercise, and then adding up the results for all exercises performed during the session.

For example, if you did 10 reps of bench press with 100 pounds, 8 reps of bicep curls with 50 pounds, and 12 reps of squats with 150 pounds, the total workload would be (10 x 100) + (8 x 50) + (12 x 150) = 2,600 pounds. This number represents the total amount of weight lifted during the session and can be used to track progress and adjust future workouts.

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Given Line Segment JK ║ Line Segment LM and Line Segment KL ║ Line Segment MJ, which statements are true? Select all the apply.

~a.) Line Segment MK ≅ Line Segment MK
~b.) ∠LKM ≅ ∠JMK
~c.) ΔJKM ≅ ΔLMK
~d.) ∠JKM ≅ ∠LMK
~e.) ΔJMK ≅ ΔLMK
~f.) ∠J ≅ ∠L

Answers

The answer of the given question based on the line segment is ,  the statements that are true are ~a.), ~b.), and ~f.).

What is Line  Segment?

A line segment is part of line that is bounded by the two distinct endpoints and contains every point on  line between its endpoints. The length of a line segment can be determined by measuring the distance between its endpoints. A line segment is different from a line, which extends infinitely in both directions, and a ray, which extends infinitely in one direction from its endpoint.

Since Line Segment JK ║ Line Segment LM and Line Segment KL ║ Line Segment MJ, we have a pair of parallel lines intersected by a transversal

From the diagram, we can see that:

a.) Line Segment MK is equal to itself, so ~a.) Line Segment MK ≅ Line Segment MK is true.

b.) ∠LKM and ∠JMK are alternate interior angles and are congruent, so ~b.) ∠LKM ≅ ∠JMK is true.

c.) ΔJKM and ΔLMK are not congruent since they have different side lengths and angles.

d.) ∠JKM and ∠LMK are corresponding angles and are not congruent.

e.) ΔJMK and ΔLMK are not congruent since they have different side lengths and angles.

f.) ∠J and ∠L are alternate interior angles and are congruent, so ~f.) ∠J ≅ ∠L is true.

Therefore, the statements that are true are ~a.), ~b.), and ~f.).

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Let X be a uniform random variable over the interval [0, 8] . What is the probability that the random variable X has a value greater than 3?

Answers

The probability that the random variable X has a value greater than 3 is 5/8.

The probability that the random variable X has a value greater than 3 can be found by calculating the area of the region under the probability density function of X to the right of 3. Since X is a uniform random variable over the interval [0, 8], its probability density function is a horizontal line with height 1/8 over the interval [0, 8].

To find the probability that X is greater than 3, we need to calculate the area of the region under the probability density function to the right of 3. This area is given by:

P(X > 3) = ∫3⁸ (1/8) dx

= [x/8]3⁸

= (8/8) - (3/8)

= 5/8

Therefore, the probability that the random variable X has a value greater than 3 is 5/8.

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Solve for the variable. Round to 3 decimal places
18
65°

Answers

The length of side BC is approximately 8.126 units.

What is right triangle?

In a right triangle, the side inverse the right point is known as the hypotenuse, and the other different sides are known as the legs. As a result, sides AB, BC, and AC make up the hypotenuse in the triangle ABC.

Utilizing geometry, we can relate the points of the triangle to the lengths of its sides. Specifically, we can utilize the sine, cosine, and digression capabilities to find the lengths of the sides given specific point measures.

Since angle A is 65 degrees and angle B is a right angle, we know that angle C is 180 - 90 - 65 = 25 degrees (by the angle sum property of triangles). Using the sine function, we have:

sin(65) = AB / AC

which implies:

AC = AB / sin(65)

Using a calculator, we can compute sin(65) ≈ 0.9063, so:

AC = 18 / 0.9063 ≈ 19.849

Now, using the cosine function, we have:

cos(65) = BC / AC

which implies:

BC = AC * cos(65)

Using the value we found for AC, we get:

BC ≈ 19.849 * cos(65) ≈ 8.126

Therefore, the length of side BC is approximately 8.126 units.

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Help I keep getting it wrong
(Take a look at pic)

Answers

The median size is 12 and yes the student is correct.

What is median?

The median is the value in the middle of a data set, meaning that 50% of data points have a value smaller or equal to the median and 50% of data points have a value higher or equal to the median.

The median is calculated as;

(n+1)/2 =( 100+1)/2 = 101/2

= 50.5th term

therefore the median size will be at the 50th term

which is size 12.

therefore the median size is 12.

The probability that a woman chosen at random has a shoe of 6 or a dress size of 16 is

10/100+19/100

= 0.1 + 0.19

= 0.29

therefore the student is correct.

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Which of the given data sets is less variable?a. 1,1, 1,4,5,8,8,8 b. 1,1, 1, 1,8,8,8,8 c. 1,1.5, 2, 2.5, 3, 3.5, 4, 4.5 d. -1, -0.75, -0.5, -0.25,0,0,0,0.25, 0.5, 0.75, 1 e. 1,1,2,2, 3, 3, 4,4 f. 1,2,2,3,3,3,4,4,4,4 g. 1,1,2,4,5,7,8,8h. 1,-1,2, -2,3,-3,4, -4 i. i. 1,2,3,4,5,6,7,8 j. None

Answers

To compare the variability of the given data sets, we can calculate their respective measures of variability such as range, variance, or standard deviation.

a. Range = 8 - 1 = 7

b. Range = 8 - 1 = 7

c. Range = 4.5 - 1 = 3.5

d. Range = 1 - (-1) = 2

e. Range = 4 - 1 = 3

f. Range = 4 - 1 = 3

g. Range = 8 - 1 = 7

h. Range = 4 - (-4) = 8

i. Range = 8 - 1 = 7

From the above calculations, we can see that the ranges for data sets a, b, g, and i are all the same, and are the largest among all the data sets. Therefore, they are the most variable data sets.On the other hand, the ranges for data sets c, d, e, f, and h are smaller, indicating less variability. Among these data sets, we can see that data set d has the smallest range, which means it has the least amount of variability.

Therefore, the answer is (d) -1, -0.75, -0.5, -0.25,0,0,0,0.25, 0.5, 0.75, 1

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HELP ASAP
A company selling widgets has found that the number of items sold, x, depends upon the price, pat which they're sold, according the equation x=90000/√2p+1 Due to inflation and increasing health benefit costs, the company has been increasing the price by $4 per month. Find the rate at which revenue is changing when the company is selling widgets at $180 each. ______ dollars per month

Answers

The rate at which revenue is changing when the company is selling widgets at $180 each is approximately $1,106.88 per month.

To find the rate at which revenue is changing, we need to use the formula for revenue:

Revenue = Price x Quantity

We are given the equation for the quantity sold as a function of the price, x = 90000/√(2p+1). To find the price when the company is selling widgets at $180 each, we set p = 89 in the equation:

x = 90000/√(2(89)+1) ≈ 872.2

Therefore, when the price is $180, the company is selling approximately 872 widgets.

Now we can write the revenue as a function of the price:

R(p) = p * x = p * (90000/√(2p+1))

To find the rate of change of revenue with respect to time, we use the chain rule:

dR/dt = dR/dp * dp/dt

We are given that the price is increasing by $4 per month, so dp/dt = 4. To find dR/dp, we differentiate the revenue function with respect to price:

R(p) = p * (90000/√(2p+1))

dR/dp = 90000/√(2p+1) - p * (1/2) * (2p+1)^(-3/2) * 2

dR/dp = 90000/√(2p+1) - p/(√(2p+1))^3

Now we can substitute p = 180 into both dR/dp and dp/dt to get the rate of change of revenue:

dR/dt = (90000/√361) - 180/(√361)^3 * 4

dR/dt = 1111.11 - 0.1235 * 4

dR/dt ≈ 1106.88

Therefore, the rate at which revenue is changing when the company is selling widgets at $180 each is approximately $1,106.88 per month.

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Suppose follows the standard normal distribution Calculate the following probabies in the ALEKS Mr. Hound your decimal places 2 (a) P(Z > 2.06) - O (b) P(Z -1.52) - O (c) P(0.95<< < 2.07)

Answers

The probability of getting a value of Z  in the normal distribution that is between 0.95 and 2.07 is 0.0744.


To find the probability that Z is greater than 2.06, you can use a standard normal distribution table or calculator to find the area to the right of 2.06. Using a calculator or table, the P(Z > 2.06) is approximately 0.0199.

b) P(Z < -1.52):
To find the probability that Z is less than -1.52, you can use a standard normal distribution table or calculator to find the area to the left of -1.52. Using a calculator or table, the P(Z < -1.52) is approximately 0.0643.

c) P(0.95 < Z < 2.07):
To find the probability that Z is between 0.95 and 2.07, you can use a standard normal distribution table or calculator to find the area between these two Z-scores. First, find the area to the left of 2.07 and the area to the left of 0.95. Then, subtract the smaller area from the larger area.

Area to the left of 2.07: ~0.9803
Area to the left of 0.95: ~0.8289

P(0.95 < Z < 2.07) = 0.9803 - 0.8289 = 0.1514

In summary:
a) P(Z > 2.06) ≈ 0.0199
b) P(Z < -1.52) ≈ 0.0643
c) P(0.95 < Z < 2.07) ≈ 0.1514

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D Question 4 1 pts Again, suppose you sell items and the total revenue in hundreds of dollars that you receive when you sell a hundred Items is given by TR () = -0.4259° +10.54. In addition, suppose you know that the total cost in hundreds of dollars to produce a hundred Items is given by TC(q) = 17 - $+159+5. Again, using the definitions MR(q)-TR\a) and MC(q)-TC(q) and your new derivative rules, find the largest quantity at which marginal revenue is equal to marginal cost.

Answers

The largest quantity at which marginal revenue is equal to marginal cost is 4.

We are given two equations: TR(q)=-0.425q²+10.54 represents the total revenue in hundreds of dollars received from selling q units of the item, and TC(q)=1/12q³ - 9/5q² + 15q + 5 represents the total cost in hundreds of dollars to produce q units of the item.

To find the marginal revenue, we need to take the derivative of the total revenue equation with respect to q, which is MR(q) = d(TR(q))/dq. Applying the power rule, we get MR(q) = -0.85q.

To find the marginal cost, we need to take the derivative of the total cost equation with respect to q, which is MC(q) = d(TC(q))/dq. Applying the power rule, we get MC(q) = 1/4q² - (18/5)q + 15.

We want to find the largest quantity at which MR(q) = MC(q). So we set these two equations equal to each other and solve for q:

-0.85q = 1/4q² - (18/5)q + 15

Multiplying both sides by 4, we get:

-3.4q = q² - (36/5)q + 60

Bringing all the terms to one side, we get:

q² - (45/5)q + 60 = 0

Simplifying, we get:

q² - 9q + 12 = 0

Factoring, we get:

(q - 3)(q - 4) = 0

Therefore, q = 3 or q = 4.

To determine which value of q gives us the largest quantity at which MR(q) = MC(q), we need to check the second derivative of the total cost equation with respect to q, which is MC'(q) = d²(TC(q))/dq². Taking the derivative of MC(q), we get MC'(q) = 1/2q - 18/5.

We evaluate MC'(3) and MC'(4) to see which one is positive, indicating that it is a minimum point. MC'(3) = -6/5 and MC'(4) = -7/2.

Therefore, q = 4 is the largest quantity at which marginal revenue is equal to marginal cost.

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Complete Question:

Again, suppose you sell Items, and the total revenue in hundreds of dollars that you receive when you sell a hundred Items is given by TR (q)=-0.425q²+10.54.

In addition, suppose you know that the total cost in hundreds of dollars to produce a hundred Items is given by TC (q)=1/12q³ - 9/5q² + 15q + 5.

Again, using the definitions MR(q)-TR(q) and MC(q)=TC(q) and your new derivative rules, find the largest quantity at which marginal revenue is equal to marginal cost.

5. Given f '(x) = 4x3 + 6x2 – 7, f(0) = 1, and f(0) = -3, find f(x).

Answers

the function f(x) that satisfies the given conditions is:

f(x) = x^4 + 2x^3 - 7x + 1

To find f(x), we need to integrate f '(x) with respect to x:

∫f '(x) dx = f(x) = ∫(4x^3 + 6x^2 – 7) dx

Using the power rule of integration, we have:

f(x) = x^4 + 2x^3 - 7x + C

where C is a constant of integration.

To find the value of C, we use the given initial conditions:

f(0) = 1, so we have:

f(0) = 0^4 + 2(0)^3 - 7(0) + C = 1

which gives us:

C = 1

Similarly, we have:

f'(0) = -3, so we have:

f'(x) = 4x^3 + 6x^2 - 7

f'(0) = 4(0)^3 + 6(0)^2 - 7 = -7

Using this information, we can find f(x) by plugging in the value of C and solving for x:

f(x) = x^4 + 2x^3 - 7x + 1

Therefore, the function f(x) that satisfies the given conditions is:

f(x) = x^4 + 2x^3 - 7x + 1

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tracy wants to determine the coordinates of the minimum value of a quadratic function. she writes the equation for the function in different forms. which form of the function would be most helpful to determine the coordinates of the minimum value?

Answers

Tracy can easily determine the coordinates of the minimum value without further calculations if the function f(x) = a(x-h)² + k opens upwards (a > 0).

Tracy wants to determine the coordinates of the minimum value of a quadratic function and is considering different forms of the function.

The form of the function that would be most helpful to determine the coordinates of the minimum value is the vertex form.

The vertex form of a quadratic function is written as:
f(x) = a(x-h)² + k

In this form, the vertex of the parabola (which represents the minimum or maximum value) has the coordinates (h, k).

By using the vertex form, Tracy can easily determine the coordinates of the minimum value without further calculations if the function opens upwards (a > 0). If the function opens downwards (a < 0), the vertex will represent the maximum value instead.

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Find an equation of the tangent line to the curve x^(2/3)+y^(2/3)=20 (an astroid) at the point (64,−8). y =

Answers

The equation of the tangent line to the curve x²/₃+y²/₃=20 at the point (64,−8) is y = -4x + 320.

To find the equation of the tangent line to the curve x²/₃+y²/₃=20 at the point (64,−8), we need to first find the derivative of the function. We can do this by implicitly differentiating both sides of the equation with respect to x:

(2/3)x⁻¹/₃ + (2/3)y⁻¹/₃*dy/dx = 0

Next, we can solve for dy/dx to find the slope of the tangent line at the point (64,−8):

dy/dx = -[(2/3)x⁻¹/₃] / [(2/3)y⁻¹/₃]

At the point (64,−8), we can substitute x=64 and y=-8 into the above expression to get the slope of the tangent line:

dy/dx = -[(2/3)(64)⁻¹/₃] / [(2/3)(-8)⁻¹/₃] = -4

Now that we know the slope of the tangent line, we can use the point-slope form of a line to find the equation of the tangent line:

y - y₁ = m(x - x₁)

where (x₁,y₁) is the point of interest and m is the slope of the tangent line.

Substituting x₁=64, y₁=-8, and m=-4 into the above equation, we get:

y - (-8) = -4(x - 64)

which simplifies to:

y = -4x + 320

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A trapezoid has an area of 134.33 square feet. One base is 16 feet long. The height measures 10.1 feet. What is the length of the other base?

Answers

The length of the other base of the trapezoid is 10.3 feet. The length of the other base of a trapezoid can be determined by the formula A = 1/2 (b₁ + b₂)h

What is trapezoid?

A trapezoid is a four-sided flat shape with two parallel sides and two non-parallel sides. The two parallel sides are called the bases of the trapezoid and the other two sides are called the legs.

The length of the other base of a trapezoid can be determined by the formula A = 1/2 (b₁ + b₂)h, where A is the area, b1 is the length of the first base, b₂ is the length of the second base, and h is the height of the trapezoid.

In this case, A = 134.33, b₁ = 16, h = 10.1. Substituting these values into the formula, we get:

134.33 = 1/2 (16 + b₂) * 10.1

Solving for b₂, we get:

b₂ = (2 * 134.33) / (16 + 10.1)

b₂ = 10.3

Therefore, the length of the other base of the trapezoid is 10.3 feet.

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find the degrees (90, 180, or 270)
1. a clockwise rotation from quadrant III to quadrant I
2. a counterclockwise rotation from quadrant I to II
3. a clockwise rotation rotation from quadrant II to III

4. A (4,5) was rotated clockwise to A' (5,-4)
5. B (-9,-2) was rotated counterclockwise to B' (-2,9)
6. C (3,7) was rotated clockwise to C' (-3,-7)

PLS HURRY IM WILLING TO GIVE ALOT OF POINTS

Answers

The degrees here are:

90 degrees90 degrees90 degrees270 degrees270 degrees180 degrees

How to solve for the degrees

A clockwise rotation from quadrant III to quadrant I involves rotating 270 degrees, which is equivalent to rotating 90 degrees clockwise.

A counterclockwise rotation from quadrant I to quadrant II involves rotating 90 degrees counterclockwise.

A clockwise rotation from quadrant II to quadrant III involves rotating 90 degrees clockwise.

To rotate point A (4,5) clockwise to A' (5,-4), we need to rotate the point 270 degrees clockwise about the origin. This involves changing the sign of the x-coordinate and swapping the x and y coordinates, resulting in the point A' (5,-4).

To rotate point B (-9,-2) counterclockwise to B' (-2,9), we need to rotate the point 270 degrees counterclockwise about the origin. This involves changing the sign of the y-coordinate and swapping the x and y coordinates, resulting in the point B' (-2,9).

To rotate point C (3,7) clockwise to C' (-3,-7), we need to rotate the point 180 degrees clockwise about the origin. This involves changing the sign of both the x and y coordinates, resulting in the point C' (-3,-7).

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Another name for probability sampling is:a. accidental sampling. b. purposive sampling. c. quota sampling. d. random sampling.

Answers

Type of sampling is more structured than accidental sampling but less reliable and less representative than probability sampling.

Probability sampling, also known as random sampling, is a method of selecting a sample from a larger population in which each individual has an equal chance of being selected. This type of sampling is considered to be the most representative and reliable way to select a sample.

Accidental sampling, also known as convenience sampling, involves selecting individuals who are easily accessible or available to participate in the study. This type of sampling is less reliable and less representative than probability sampling.

Purposive sampling, also known as judgmental sampling, involves selecting individuals who meet specific criteria or characteristics that are important to the study. This type of sampling is often used in qualitative research and may not be as representative as probability sampling.

Quota sampling involves selecting individuals based on specific quotas or characteristics to ensure that the sample is representative of the larger population. This type of sampling is more structured than accidental sampling but less reliable and less representative than probability sampling.

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Final answer:

Probability sampling is also known as random sampling, where each individual has an equal chance of being selected.

Explanation:

Another name for probability sampling is random sampling. Random sampling is a method of choosing a sample from a population in which each individual has an equal probability of being selected. Other types of non-random sampling methods include convenience sampling, stratified sampling, and cluster sampling.

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Evaluate the definite integral I = S0 -2 (2+√4-x²)dx by interpreting it in terms of known areas

Answers

The integrand 2 + √(4 - x²) speaks to the condition of a half circle with a span of 2 centered at the root. The definite integral of I = S0 -2 (2+√4-x²)dx is equal to 8 + 2π and is positive indispensably.

We are able to assess the unequivocal indispensably by finding the region of the shaded locale within the chart underneath:

The region of the shaded locale is the whole of the regions of the half circle and the rectangle underneath it. The width of the rectangle is 4 units (the remove between -2 and 2), and the stature is 2 units (the distinction between the work values at x = -2 and x = 2). In this manner, the range of the rectangle is:

A_rect = width * tallness

= 4 * 2

= 8

The zone of the half circle can be found utilizing the equation for the zone of a circle:

A_circle = (π * r2) / 2

where r = 2. Substituting within the values gives: A_circle = (π * 2*2) / 2

= 2π

Hence, the range of the shaded locale is:

A_shaded = A_rect + A_circle

= 8 + 2π

This often breaks even with the esteem of the positive necessity I. So we have:

I = S0 -2 (2+√4-x²)dx = A_shaded = 8 + 2π

Thus, the esteem of the positive indispensably I  8 + 2π. 

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Evaluate the integral I = S3 1 (5+4x)dx by interpreting it in terms of known areas

Answers

The value of the given definite integral after evaluation is 26, under the condition that the evaluation should take place interpreting it in terms of known areas.

The integral[tex]I = \int\limits^3_1 (5+4x)dx[/tex] can be interpreted in and expressed as

The definite integral projects the area under the curve of the function (5+4x) between x=3 and x=1. Then the area can be divided into two parts: a rectangle with base 2 and height 5+4(3) = 17, and a triangle with base 2 and height (5+4(1)) - 17 = -8.
Therefore, he area of the rectangle is 2× 17 = 34, and the area of the triangle is (1/2)×2×(-8) = -8.

Now, the integral[tex]I = \int\limits^3_1 (5+4x)dx[/tex] can be calculated
I = Area of rectangle + Area of triangle
I = 34 + (-8)
I = 26
The value of the given definite integral after evaluation is 26, under the condition that the evaluation should take place interpreting it in terms of known areas.
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3 What is df when n = 21 in a Chi Square problem ? What is the area to right of chi-square sub Lif c = .90 ? o If the chi-square confidence interval for O-squared is 36 < o? < 144 , what is the confidence interval for o ?

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1. When n = 21 in a Chi-Square problem, the degrees of freedom (df) would be 20. This is because the formula for df in a Chi Square test is df = (number of rows - 1) x (number of columns - 1), and in a 2x2 contingency table with n = 21, there would be 1 row and 1 column, which means the df would be (1-1) x (1-1) = 0.

However, since there must be at least one expected frequency greater than 5 in each cell of the contingency table for the Chi Square test to be valid, we would need to combine cells and create a larger table with more rows and columns in order to satisfy this condition. Once we have a valid table, we can calculate the df using the formula mentioned earlier.

2. The area to the right of chi-square sub Lif c = .90 can be found using a Chi Square distribution table or a Chi Square calculator. Assuming a two-tailed test with alpha = .10, the critical value for chi-square with df = 1 and a one-tailed test is 2.71. Therefore, the area to the right of chi-square sub Lif c = .90 would be 1 - 0.90 = 0.10, and the corresponding chi-square value would be 2.71.

3. If the chi-square confidence interval for O-squared is 36 < o? < 144, we can calculate the confidence interval for o by taking the square root of the upper and lower bounds of the O-squared interval. Therefore, the confidence interval for o would be 6 < o < 12.

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tariq bought a pair of sunglasses online for $37. he used a coupon code to get a 20% discount. the website also applied a 20% processing fee to the price after the discount. how much did tariq pay, in the end? round to the nearest cent.

Answers

Tariq paid $35.52 for the sunglasses after the discount and processing fee, rounded to the nearest cent. To get how much Tariq paid for the sunglasses after the discount and processing fee, we'll follow these steps:


1. Calculate the 20% discount on the original price of $37.
2. Subtract the discount from the original price to get the price after the discount.
3. Calculate the 20% processing fee on the price after the discount.
4. Add the processing fee to the price after the discount to get the final price Tariq paid. Then, round to the nearest cent.
Step 1: 20% of $37 = 0.20 * 37 = $7.40 (discount)
Step 2: $37 - $7.40 = $29.60 (price after discount)
Step 3: 20% of $29.60 = 0.20 * 29.60 = $5.92 (processing fee)
Step 4: $29.60 + $5.92 = $35.52 (final price)
So, Tariq paid $35.52 for the sunglasses after the discount and processing fee, rounded to the nearest cent.

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Critical values for quick reference during this activity.

Confidence level / Critical value

0.90 z ∗ = 1.645

0.95 z ∗ = 1.960

0.99 z ∗ = 2.576

In a poll of 1000 randomly selected voters in a local election, 761 voters were against school bond measures. What is the 90 % confidence interval? [____,____]

Answers

The critical value for a 90% confidence interval is 1.645. To calculate the margin of error, the formula is employed, [tex]m=z*(\sqrt{p^*}(1-p)/n )[/tex].

What is sample proportion?

The ratio of a sample's size to that of the population is known as the sample proportion. It also goes by the name "relative frequency" and refers to how frequently a specific event or quality can be seen in a sample population.

The number of voters opposed to the school bond initiatives divided by the total number of voters yields the sample proportion, p.

In this case,

p = 761/1000

= 0.761.

The margin of error (m), which represents the range of variance that can be anticipated from the sample proportion, is then calculated using this number.

The crucial value and the confidence level are what determine the margin of error, or m.

The critical value for a 90% confidence interval is 1.645. The formula is used to compute the margin of error [tex]m=z*(\sqrt{p^*}(1-p)/n )[/tex].

The margin of error when we enter the numbers is

m = 1.645*(√0.761*(1-0.761)/1000)

= 0.039.

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The complete question is,

Critical values for quick reference during this activity.

Confidence level Critical value

0.90 z∗=1.645

0.95 z∗=1.960

0.99 z∗=2.576

Jump to level 1

In a poll of 1000 randomly selected voters in a local election, 403 voters were against school bond measures. What is the sample proportion p^? (Should be a decimal answer)

What is the margin of error m for the 95% confidence level? (Should be a decimal answer)

the water in a pool is evaporating at a rate of 2% per day. if the pool has 16,000 gallons in it today, how many gallons will it have in 12 days? round your answer to the nearest whole number, if necessary.

Answers

The pool will have approximately 12,555 gallons of water left in it after 12 days.

To find out how many gallons of water will be left in the pool after 12 days, given that it evaporates at a rate of 2% per day and has 16,000 gallons today, follow these steps:

1. Determine the rate of water remaining in the pool each day:

Since the pool loses 2% of water daily, the remaining percentage is 100% - 2% = 98%.

In decimal form, this is 0.98.

2. Calculate the amount of water after 12 days:

To do this, raise the daily remaining water rate (0.98) to the power of the number of days (12):

0.98¹² ≈ 0.7847.

This represents the percentage of water remaining in the pool after 12 days.

3. Multiply the initial water amount (16,000 gallons) by the percentage of water remaining after 12 days (0.7847):

16,000 * 0.7847 ≈ 12,555 gallons.

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728x - x? A company's revenue for selling x (thousand) items is given by R(x) = x2 + 728 Find the value of x that maximizes the revenue and find the maximum revenue. XE maximum revenue is $ 9

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The value of x that maximizes the revenue is  22.4 thousand items sold and the maximum revenue is $7207.14.

To find the value of x that maximizes the revenue, we need to take the derivative of the revenue function R(x) with respect to x, set it equal to zero, and solve for x.

R(x) = (728x-x²)/(x² + 728)

R'(x) = [728(728-x²) - 2x(-x² + 728)]/(x² + 728)²

R'(x) = [1456x² - 728²]/(x^2 + 728)²

R'(x) = 1456(x² - 501.56)/(x² + 728)²

Setting R'(x) equal to zero, we get:

1456(x²  - 501.56)/(x²  + 728)²  = 0

x²  - 501.56 = 0

x²  = 501.56

x = ±√(501.56)

x = √(501.56)

= 22.4

To find the maximum revenue, we substitute the value of x into the revenue function R(x):

R(x) = (728x-x²)/(x²+ 728)

R(22.4) = (728(22.4)-(22.4)²)/((22.4)² + 728)

R(22.4) = $7207.14

Therefore, the value of x that maximizes the revenue is  22.4 thousand items sold and the maximum revenue is $7207.14.

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A company's revenue for selling x (thousand) items is given by R(x) = (728x-x^2)/(x^2 + 728). Find the value of x that maximizes the revenue and find the maximum revenue. x=__, maximum revenue is $

what is the diameter of a hemisphere with a volume of 9103 cm 3 , 9103 cm 3 , to the nearest tenth of a centimeter?

Answers

On solving the query we can say that As a result, the hemisphere's diameter, to the nearest tenth of a centimetre, is roughly 23.8 cm for a volume of 9103 cm3.

what is function?

Mathematics is concerned with numbers and their variations, equations and related structures, shapes and their places, and possible placements for them. The relationship between a collection of inputs, each of which has an associated output, is referred to as a "function". An relationship between inputs and outputs, where each input yields a single, distinct output, is called a function. Each function has a domain and a codomain, often known as a scope. The letter f is frequently used to represent functions (x). X is the input. The four main types of functions that are offered are on functions, one-to-one functions, many-to-one functions, within functions, and on functions.

The equation (2/3)r3 yields the volume of a hemisphere. Given that the hemisphere's volume is 9103 cm3, we can use the following formula to get its radius:

(2/3)πr³ = 9103

When we simplify this equation, we obtain:

r³ = 9103 × 1.5 / π

r = (9103 × 1.5 / π)^(1/3)

Now, the hemisphere's diameter is equal to double its radius. We therefore have:

diameter = 2r diameter = 2 (9103 divided by 1.5) divided by 1/3

Calculating this expression yields the following results:

diameter: 23.8 centimetres (rounded to the closest tenth)

As a result, the hemisphere's diameter, to the nearest tenth of a centimetre, is roughly 23.8 cm for a volume of 9103 cm3.

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The diameter of the hemisphere to the nearest tenth of a centimeter is 23.9 cm.

What is hemisphere?

A hemisphere is a three-dimensional geometric shape that is formed by slicing a sphere in half along a plane that passes through its center. The resulting shape is a half-sphere with a curved surface and a flat base. A hemisphere has the same radius as the sphere from which it was derived and is therefore a symmetrical shape.

The volume of a hemisphere can be calculated using the formula: V = (2/3)πr³, where V is the volume and r is the radius.

Since we have the volume of the hemisphere, we can solve for the radius as follows:

V = (2/3)πr³

9103 = (2/3)πr³

r³ = (3/2) * 9103/π

[tex]r = (3/2 * 9103/\pi )^{(1/3)}[/tex]

The diameter of the hemisphere is twice the radius, so:

diameter = 2r = 2 * [tex](3/2 * 9103/\pi )^{(1/3)}[/tex] ≈ 23.9 cm

Therefore, the diameter of the hemisphere to the nearest tenth of a centimeter is 23.9 cm.

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The table shows the coordinates of the vertices of pentagon ABCDE.

Pentagon ABCDE is dilated by a scale factor of 7/3
with the origin as the center of dilation to create pentagon A′B′C′D′E′. If (x, y) represents the location of any point on pentagon ABCDE, which ordered pair represents the location of the corresponding point on pentagon A′B′C′D′E′?

Answers

If (x, y) represents the location of any point on pentagon ABCDE, an ordered pair that represents the location of the corresponding point on pentagon A′B′C′D′E′ is: D. (x, y)      →    (7/3x, 7/3y).

What is scale factor?

In Geometry, a scale factor can be defined as the ratio of two corresponding side lengths or diameter in two similar geometric objects such as equilateral triangles, square, quadrilaterals, pentagons, polygons, etc., which can be used to either vertically or horizontally enlarge (increase) or reduce (compress) a function representing their size.

Generally speaking, the transformation rule for the dilation of a geometric object (pentagon) based on a specific scale factor of 7/3 is given by this mathematical expression:

(x, y)      →    (SFx, SFy)

Where:

x and y represents the data points.SF represents the scale factor.

Therefore, the transformation rule for this dilation is given by;

(x, y)      →    (7/3x, 7/3y)

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Missing information:

The question is incomplete and the complete question is shown in the attached picture.

the mandible is moving and the cusp "moving" with the arrow is in the

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The mandible is moving and the cusp "moving" with the arrow is in the either the working or rotating side, while the other side is referred to as either the balancing or orbiting side.

Given that;

The mandible is moving and the cusp "moving" with the arrow is in the ?

Now, We know that;

The side of the mandible that moves sideways is referred to as either the working or rotating side, while the other side is referred to as either the balancing or orbiting side.

Thus, The mandible is moving and the cusp "moving" with the arrow is in the either the working or rotating side, while the other side is referred to as either the balancing or orbiting side.

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How do you do this exactly?

Answers

Answer:

For n = 1, 2, 3, ...

[tex]{a}(n) = - 3 + 4(n - 1)[/tex]

The sample size needed for a study increases when:a. the alpha level is increased from .01 to .05. b. the number of variables in the study increases. c. a one-tailed versus a two-tailed statistical test is used. d. the sensitivity of the instruments used is high.

Answers

The sample size needed for a study can be affected by several factors. Firstly, increasing the alpha level from .01 to .05 implies that the researcher is willing to accept a higher probability of committing a type I error (rejecting a true null hypothesis).

In this case, the sample size needed for the study increases as the probability of obtaining a significant result by chance is higher. Secondly, the number of variables in the study can also affect the sample size needed. A larger number of variables may require a larger sample size to ensure that the study has sufficient statistical power to detect significant effects.

Thirdly, using a one-tailed versus a two-tailed statistical test can also affect the sample size needed. A one-tailed test is more powerful than a two-tailed test as it focuses on detecting effects in only one direction. However, it also requires a larger sample size to achieve the same level of statistical power as a two-tailed test.

Finally, the sensitivity of the instruments used can also impact the sample size needed for a study. A more sensitive instrument may require a smaller sample size to detect significant effects compared to a less sensitive instrument.

In summary, the sample size needed for a study can increase when the alpha level is increased, the number of variables in the study is increased, a one-tailed statistical test is used, or the instruments used have low sensitivity. Researchers need to consider these factors when designing a study to ensure that they have sufficient statistical power to detect meaningful effects.

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the population standard deviation is 1.88. Unfortunately, I forgot to write down the sample size, n, but I know the sample mean has a normal sampling I distribution and the 96% CI has a margin of error of M = 0.704927685875988. What must the sample size have been?

Answers

The sample size must be a whole number, we can round it to the nearest integer, which is 17. Therefore, the sample size must have been approximately 17 based on given standard deviation.

Given the population standard deviation, the normal sampling distribution of the sample mean, and the margin of error, we can find the sample size, n. Here's a step-by-step explanation:

1. The 96% confidence interval is given by the formula: CI = Sample Mean ± Margin of Error
[tex]M = Z * (Standard Deviation / √n)[/tex]
2. Since we're dealing with a normal sampling distribution, the Margin of Error (M) is calculated as follows:
 [tex]M = Z * (Standard Deviation / √n)[/tex]

3. In this case, the Margin of Error (M) is 0.704927685875988, and the population standard deviation is 1.88. For a 96% confidence interval, the Z-score (Z) is approximately 2.05. We can rearrange the Margin of Error formula to find the sample size (n):

  n =[tex](Z * Standard Deviation / M)^2[/tex]

4. Plug in the values and solve for n:
  n = (2.05 * 1.88 / 0.704927685875988)^2

5. After calculating, you'll find that n ≈ 17.07.

Since the sample size must be a whole number, we can round it to the nearest integer, which is 17. Therefore, the sample size must have been approximately 17.

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How Do You Find The Perpendicular Distance Between A Line And A Parallel Plane, Given 2 Points On The Line, And The Equation Ax+By+Cz=D Of A Plane? Please Explain Thoroughly. How do you find the perpendicular distance between a line and a parallel plane, given 2 points on the line, and the equation Ax+By+Cz=D of a plane? Please explain thoroughly

Answers

To find the perpendicular distance between a line and a parallel plane, given 2 points on the line and the equation Ax+By+Cz=D of a plane, follow these steps:

1. Find the direction vector of the line by subtracting the coordinates of the two points on the line. This gives you a vector that points in the direction of the line.
2. Find the normal vector of the plane by using the coefficients of the equation Ax+By+Cz=D. The normal vector is the vector perpendicular to the plane, and its components are A, B, and C.
3. Find the dot product of the direction vector of the line and the normal vector of the plane. This gives you the cosine of the angle between the line and the plane.
4. Use the formula for the perpendicular distance between a point and a plane: distance = |Ax + By + Cz - D| / sqrt(A^2 + B^2 + C^2), where (x,y,z) are the coordinates of any point on the line.
5. Multiply the distance by the cosine of the angle between the line and the plane, which you found in step 3. This gives you the perpendicular distance between the line and the plane.
So, the formula for the perpendicular distance between a line and a parallel plane, given 2 points on the line and the equation Ax+By+Cz=D of a plane, is:
distance = |Ax + By + Cz - D| / sqrt(A^2 + B^2 + C^2) * cos(theta)
where theta is the angle between the line and the plane, and can be found using the dot product in step 3.

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