The vector

u

u has magnitude

2

2 and direction

5

5

∘. 55

∘. If vector

v

=

−

2

u

,

v=−2u, then what is the magnitude and direction of vector

v

?

v? Write your direction in degrees in the interval

0

∘

≤

θ

<

36

0

∘. 0

∘

≤θ<

Using the formula for the area of a circle:

A = πr^2

A = π(4m)^2

A = 16π

A ≈ 50.3 m^2

Breaking the circle into equal sectors and rearranging the sectors as a parallelogram:

We can break the circle into 8 equal sectors, like this:

[IMAGE: circle with 8 equal sectors]

Each sector is 1/8th of the circle, so its angle is 45°. We can rearrange the sectors to form a parallelogram, like this:

[IMAGE: parallelogram made up of 8 sectors of the circle]

The base of the parallelogram is the same as the circumference of the circle, which is 2πr:

base = 2πr

base = 2π(4m)

base = 8π

The height of the parallelogram is the radius of the circle, which is 4m.

Now we can find the area of the parallelogram:

A = base × height

A = 8π × 4m

A = 32π

A ≈ 100.5 m^2

Finally, we can divide the area of the parallelogram by 8 to get the area of the circle:

A = (area of parallelogram) ÷ 8

A = (32π) ÷ 8

A = 4π

A ≈ 12.6 m^2

Therefore, the area of the circle is approximately 50.3 m^2 (using the formula) or 12.6 m^2 (using the parallelogram method).

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Answer: The movie was 2 hours and 20 minutes long.

Step-by-step explanation:

basic adding + subtracting

Answer:

1243 ft³

Step-by-step explanation:

Given the volume formula for a cylinder:

[tex]V=\pi r^{2} h[/tex]

and we know that the radius is 6 and the height is 11, we can substitute:

[tex]V=\pi 6^{2} 11[/tex]

square 6

V=π36(11)

use 3.14 for pi and multiply everything together

V=3.14(36)(11)

simplify

V=1243.44

1243.44 rounded to the nearest whole number is 1,243 ft³.

Hope this helps! :)

Minimum

-11

Main concepts:

Concept 1: Identify the type of equation

Concept 2: Identify the concavity (opens up/down)

Concept 3: Finding a vertex of a parabola

Concept 1: Identify the type of equation

First, observe that the equation is a polynomial.  This is a type of equation where there may be multiple terms containing an x, where each term with an x is raised to a whole number power, and may be multiplied by a real number.  Additionally, there may be a constant term added (or subtracted).

For our equation, [tex]y=3x^2-12x+1[/tex], the first two terms contain an x, each raised to a whole number power, and are multiplied by a number.  Additionally, there is a constant added to the end of the equation.  Therefore, this is a polynomial.

The largest power of x in a polynomial is called the "degree" of the polynomial.  Since the largest power of x is 2, this is called a second degree polynomial.  Another common name for a second degree polynomial is a quadratic equation.

This quadratic equation is already in what is known as "Standard form" [tex]y=ax^2+bx+c[/tex]

Concept 2: Identify the concavity (opens up/down)

For quadratic equations, the graph of the equation will be a sort of "U" shape" called a parabola.  The parabola either opens up or down depending on the "leading coefficient" in the quadratic equation.

The "leading coefficient" of any polynomial is the constant number that is multiplied to x in the term with the highest power.  In this case, the leading coefficient is 3.

A parabola opens up or down in correspondence with the sign of the leading coefficient.  If the leading coefficient is positive, the parabola opens upward.  If the leading coefficient is negative, the parabola opens downward.

Since the leading coefficient is 3, the parabola for our example opens upward.  The branches of the "U" will go upward forever, without a maximum.  However, the bottom of the "U" will have a minimum value.  We are assigned to find this minimum value (how low it goes).

Concept 3: Finding a vertex of a parabola

To find the vertex of a parabola, with an equation in standard form, there are a few methods, but the most straightforward is to use the vertex formula:

[tex]h=\dfrac{-b}{2a}[/tex]

Where "h" is the x-coordinate of the vertex, and "a" and "b" are the coefficients from the quadratic equation: [tex]y=ax^2+bx+c[/tex]

[tex]h=\dfrac{-(-12)}{2(3)}[/tex]

[tex]h=\dfrac{12}{6}[/tex]

[tex]h=2[/tex]

So, the parabola will have a vertex with an x-coordinate of "2", meaning that the lowest point will be at a position that is 2 units to the right of the origin... however, we still don't know how high that minimum is.  Fortunately, the equation [tex]y=3x^2-12x+1[/tex] itself gives the relationship between any x-value and the y-value that is associated with it.

[tex]y=3x^2-12x+1[/tex]

[tex]y=3(2)^2-12(2)+1[/tex]

[tex]y=3*4+(-12)*2+1[/tex]

[tex]y=12+-24+1[/tex]

[tex]y=-11[/tex]

So, the vertex of the parabola is (2,-11).

The height of the vertex is -11, so the value of the minimum is -11.

Side note: "What is the value of the minimum" is a different question that "where is the minimum at".  The minimum is at 2.  The actual value of the minimum is -11.

The volume of the solid obtained by rotating the region about the line x=9 is approximately 201.06 cubic units.

To find the volume of the solid obtained by rotating the region bounded by 2 =8 32? and 2 = -2y about the line x= 9, we can use the cylindrical shell method.

First, we need to sketch the region and the line of rotation:

  |         +---------+

8 |         |         |

  |         |         |

  |         +---------+ x=9

  |              

0 +---------------+

  0      4      8

The region is a rectangle with height 4 and width 8, centered at the origin. The line of rotation is x=9.

Now, we can express the volume of the solid as a sum of cylindrical shells:

V = ∫[0,4] 2πr h dx

where r is the distance between x=9 and the boundary of the region at height x, and h is the thickness of the shell.

Since the region is symmetric about the y-axis, we can consider only the right half of the region and multiply the result by 2 to get the total volume.

The equation of the boundary at height x is:

2 = -2y

y = -x/2

The distance between x=9 and this line is:

r = 9 - (-x/2) = 9 + x/2

The thickness of the shell is dx.

Substituting these values into the integral, we get:

V = 2 ∫[0,4] 2π(9 + x/2) dx

V = 2π ∫[0,4] (18 + x) dx

V = 2π [18x + (1/2)[tex]x^2[/tex]] from x=0 to x=4

V = 2π [(18*4 + (1/2)[tex]4^2[/tex]) - (180 + (1/2)*[tex]0^2[/tex])]

V = 64π ≈ 201.06

Therefore, the volume of the solid obtained by rotating the region about the line x=9 is approximately 201.06 cubic units.

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The probability of Amelie spinning either an odd number or a red number is 0.6 or 60%.

The probability of Amelie spinning either an odd number or a red number can be found by adding the probability of spinning an odd number to the probability of spinning a red number and then subtracting the probability of spinning a number that is both even and not red.

First, let's find the probability of spinning an odd number. Out of the ten equally sized spaces on the spinner, five of them are odd (1, 3, 5, 7, and 9). Therefore, the probability of spinning an odd number is 5/10 or 1/2.

Next, let's find the probability of spinning a red number. Out of the ten equally sized spaces on the spinner, three of them are red (2, 4, and 6). Therefore, the probability of spinning a red number is 3/10.

Finally, we need to subtract the probability of spinning a number that is both even and not red. Out of the ten equally sized spaces on the spinner, two of them are even and not red (8 and 10). Therefore, the probability of spinning a number that is both even and not red is 2/10 or 1/5.

To find the probability of spinning either an odd number or a red number, we add the probability of spinning an odd number (1/2) to the probability of spinning a red number (3/10) and then subtract the probability of spinning a number that is both even and not red (1/5).

(1/2) + (3/10) - (1/5) = 0.6 or 60%

Therefore, the probability of Amelie spinning either an odd number or a red number is 0.6 or 60%.

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32/9

So the producer surplus at the equilibrium point is 32/9 dollars.

To find the equilibrium point, we need to set D(x) equal to S(x) and solve for x:

(x-7)^2 = x^2 + 2x + 33

Expanding and simplifying:

x^2 - 14x + 49 = x^2 + 2x + 33

12x = 16

x = 4/3

So the equilibrium point is x = 4/3.

To find the consumer surplus at the equilibrium point, we need to find the difference between the maximum price consumers are willing to pay (D(4/3)) and the equilibrium price (S(4/3)) and multiply by the quantity sold (4/3):

Consumer surplus = (D(4/3) - S(4/3)) * (4/3)

= [(4/3 - 7)^2 - (4/3)^2 - 2(4/3) - 33] * (4/3)

= [49/9 - 16/9 - 8/3 - 33] * (4/3)

= -224/27

So the consumer surplus at the equilibrium point is -224/27 dollars.

To find the producer surplus at the equilibrium point, we need to find the difference between the equilibrium price (S(4/3)) and the minimum price producers are willing to accept (S(0)) and multiply by the quantity sold (4/3):

Producer surplus = (S(4/3) - S(0)) * (4/3)

= [(4/3)^2 + 2(4/3) + 33 - 33] * (4/3)

= 32/9

So the producer surplus at the equilibrium point is 32/9 dollars.

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We can use the ratio test to determine whether the series ∑(n=1[tex])^(infinity)[/tex][tex]13^n[/tex]/ [(n+1)[tex]6^(2n+1)[/tex]] is convergent or divergent.

We evaluate the limit:

lim n → ∞ [tex]|(13^(n+1) / [(n+2)6^(2n+3)]) / (13^n / [(n+1)6^(2n+1)])|[/tex]

= lim n → ∞ [tex]|(13^(n+1) / 13^n) * [(n+1)6^(2n+1) / (n+2)6^(2n+3)]|[/tex]

= lim n → ∞ [tex]|13 / 6^2| * |(n+1)/(n+2)|[/tex]

= 13/36

Since the limit is less than 1, by the ratio test, the series is convergent.

To find the value of a_n, we can substitute n = 1 into the formula:

a_n = [tex]13^n / [(n+1)6^(2n+1)][/tex]

a_1 = [tex]13 / [(1+1)6^(2+1)] = 13 / (2*6^3)[/tex]

Therefore, a_1 = 13 / 432.

Note that we only needed to find the value of a_1 to apply the ratio test and determine the convergence of the series.

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The amount of water in the tank can be calculated by multiplying 3/4 to the volume of the tank: 3/4 x V = (3/4)L x W x H.

To calculate the amount of water in the aquarium's fish tank in the shape of a prism,

you would need to know the dimensions of the tank and then multiply the volume of the tank by 3/4.

Let's assume that the aquarium has a rectangular prism shape,

the amount of water in the tank would depend on the dimensions of the tank.

Let's assume the tank has a length of L, a width of W, and a height of H.

The volume of the tank can be calculated by multiplying the length, width, and height together: V = L x W x H.

If the tank is 3/4 full of water, the volume of water in the tank would be 3/4 of the total volume of the tank.

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The option that can be true for the function g(x) is C; g(-13) = 20

Here we know that the function g(x) has:

The domain ---> -20 ≤ x ≤ 5

The range --->  -5 ≤ g(x) ≤ 45

And g(0) = -2

       g(-9) = 6

There are two statements that could be true:

g(-13) = 20, because -13 belongs to the domain and 20 belongs to the range.

g(0) = 2  could also be true.

Now, we can see that g(-9) > g(0), then as x becomes smaller, g increases, then the option that seems to be correct is g(-13) = 20

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The area of the sector is approximately 23.24 m^2.

To find the area of the sector, we first need to find the central angle of the sector.

The entire circumference of the circle is given by 2πr, where r is the radius of the circle. In this case, the circumference is 2π(3) = 6π m.

The arc length given is 47 m, which we can use to find the central angle of the sector:

central angle = (arc length / circumference) × 360°

central angle = (47 / 6π) × 360°

central angle ≈ 299.02°

Now that we have the central angle, we can use the formula for the area of a sector:

area of sector = (central angle / 360°) × πr^2

area of sector = (299.02 / 360) × π(3)^2

area of sector ≈ 7.43π m^2

Rounding to two decimal places, the area of the sector is approximately 23.24 m^2.

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Gilberto brought $69.00 to the state fair.

Let's start by assigning variables to represent the unknown values in the problem:

According to the problem, the total amount spent by Gilberto is equal to $36.50, so we can set up an equation:

x + (1/2)x + (1/6)x = 36.5

Simplifying the equation, we can combine the like terms:

(5/6)x = 36.5

To solve for x, we can multiply both sides by the reciprocal of 5/6:

x = 36.5 / (5/6) = $43.80

So the cost of the pass is $43.80. Using the values we assigned earlier, we can find the cost of the souvenir and the burger:

Therefore, Gilberto spent $43.80 on the pass, $21.90 on the souvenir, and $7.30 on the burger, for a total of $43.80 + $21.90 + $7.30 = $73.00.

However, we are also told that Gilberto had $4.00 left over after buying these items.

So we can subtract that from the total amount spent to get the initial amount of money that Gilberto brought to the fair:

$73.00 - $4.00 = $69.00

Therefore, Gilberto brought $69.00 to the state fair.

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If the motion of a point on the drum of a clothes dryer is modeled by the function y=12 sin (4/3π t) +20, the dryer rotates 40 times per minute.

The function y = 12 sin (4/3π t) + 20 models the vertical motion of a point on the drum of a clothes dryer. The amplitude of the function is 12, which represents the maximum displacement of the point from its rest position. The vertical shift of the function is 20, which represents the height of the point from the ground when the drum is at rest.

To determine the number of times the dryer rotates per minute, we need to find the period of the function, which is the time it takes for the function to complete one full cycle. The period of a sinusoidal function is given by the formula:

T = (2π) / b

where b is the coefficient of the t variable in the sine or cosine function.

In this case, b = (4/3)π, so the period of the function is:

T = (2π) / (4/3π) = 3/2 seconds

This means that the point on the drum completes one full cycle of vertical motion every 3/2 seconds. To convert this to rotations per minute, we need to find the number of cycles per minute:

cycles per minute = (60 seconds per minute) / (3/2 seconds per cycle) = 40 cycles per minute

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Answer:

2.2

Step-by-step explanation:

To find your GPA, use the attached image:

After you've written down your numerical scores, divide it by the total classes you're taking, which is 7.

So, your GPA is 2.2

Hence, 25% is the likelihood that the mouse will succeed in escaping the maze if all turns are made at random.

The examination of random chance and the likelihood that they will occur is the focus of the mathematical field of probability. It is a gauge of how likely an event is to occur and is represented by a value between zero and 1. A probability of 1 indicates that an event will undoubtedly occur. The probability of an occurrence is zero if it cannot occur. An event's probability is 0.5, or 50%, when it possesses a 50/50 chance of occurring. The number of favourable outcomes is divided by the entire amount of possible results to determine probability.

given

Based on the tree diagram, the following is an orderly list of every route that might be taken:

Three left turns and one right turn, in whatever order, make up each route.

As there are two options (left or right) for each turn, there are a total of 24 = 16 potential sequences of four turns.

Only if the mouse makes precisely three left turns and one right out of these will it be able to escape the maze.

Three lefts and one right can be arranged in one of four distinct ways (LLL, LLR, LRL, RLL), so the likelihood that the mouse will elude the maze is:

P(escape) = Number of favourable results / Number of potential results = 4 / 16 = 0.25 = 25%

Hence, 25% is the likelihood that the mouse will succeed in escaping the maze if all turns are made at random.

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X represents the number of basketballs in Chris's gym class.

Chris represents the number of students in his gym class with the expression 4x + 2. We know that the number of students is four times the number of basketballs, so we can set up the equation 4x = the number of basketballs.

If we substitute this expression for the number of students in the gym class, we get 4(4x) + 2 = the total number of students in the gym class and locker room. We also know that there are two more students in the locker room, so we can add 2 to this expression to get 4(4x) + 4 = the total number of students in the gym class and locker room.

Now we can set this expression equal to the original expression for the number of students, 4x + 2, and solve for x:

4(4x) + 4 = 4x + 2

16x + 4 = 4x + 2

12x = -2

x = -1/6

However, x cannot represent a negative number of basketballs, so there must be an error in the problem.

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Since the function approaches the same value (0) along both paths, we can claim that the limit lim(x,y)→(0,0) f(x,y) exists and is equal to 0.

Your question is asking whether the limit of the function f(x,y) exists at the point (0,0). The function f(x,y) is defined as:
f(x,y) = x^2 + y if (x,y) ≠ (0,0)
f(x,y) = 0 if x = y = 0
To verify whether the limit exists, we need to check if the function approaches a unique value as (x,y) approaches (0,0). In other words, we need to determine if lim(x,y)→(0,0) f(x,y) exists.
To verify this claim, consider the function along different paths towards (0,0). Let's examine two paths:
1) x = 0: As x approaches 0, f(0,y) = y, and the limit becomes lim(y→0) y = 0.
2) y = x: As y approaches 0 along this path, f(x,x) = x^2 + x, and the limit becomes lim(x→0) (x^2 + x) = 0.

Since the function approaches the same value (0) along both paths, we can claim that the limit lim(x,y)→(0,0) f(x,y) exists and is equal to 0.

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The measure of the largest interior angle is  105°.

What is the measure of angle?

When two lines or rays intersect at a single point, an angle is created. The vertex is the term for the shared point. An angle measure in geometry is the length of the angle created by two rays or arms meeting at a common vertex.

Here, we have

Given: The measures of 5 of the interior angles of a hexagon are: 130, 120°, 80, 160, and 155. we have to find the measure of the largest interior angle.

The sum of all the six interior angles of a hexagon is 720°.

As sum of five angles is 130° + 120° + 80° + 160° +155° = 165°

The sixth angle is 720° - 165° = 75°

So the smallest interior angle of the hexagon is 75°.

and the largest exterior angle is 180° -  75° =  105°.

Hence, the measure of the largest interior angle is  105°.

Question: The measures of 5 of the interior angles of a hexagon are: 130, 120°, 80, 160, and 155 What is the measure of the largest exterior angle?

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The possible values of x as required to be determined in the task content are; ±½.

It follows from the task content that the possible values of x are to be determined from the given task content.

The given equation can be written algebraically as;

√(8x) • √(10x) • √(3x) • √(15x) = 15

√3600x² = 15

60x² = 15

x² = 15 / 60

x² = 1/4.

x = ± ½.

Ultimately, the possible values of x as required in the task content are; +½ and -½.

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The linear equation in slope intercept form is:

y = -0.1x + 9

The formula for finding the Linear Equation in slope intercept form is expressed in the form:

y = mx + c

where:

m refers to the slope

c refers to the y-intercept

Looking at the given graph, we can see that:

The y-intercept = 9

The y-intercept is the point where the line crosses the y-axis while x-intercept is the point where the line crosses the x-axis.

Taking the two coordinates:

(1970, 7) and (1990, 5)

Slope:

m = (5 - 7)/(1990 - 1970)

m = -2/20

m = -0.1

Thus, the Equation in slope intercept form is expressed in the form of:

y = -0.1x + 9

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I'm sorry, but the domain of a function is usually specified as an interval or range of values, rather than a single point. To calculate the average rate of change of a function over a given domain, we need to know the function itself and the endpoints of the domain.

If you provide me with more details about the function and the domain, I can help you calculate the average rate of change.

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Answer:

1. [tex]9^{2} + 12^2 = 15^2\\81+144=225[/tex]

The function is increasing for all real values of x where x < –4.

The statement that is true about the function is: "The function is decreasing for all real values of x where x < -4."

In order to determine the behavior of the function, we look at the given options. Among the options, the only statement that aligns with the function being decreasing is the one that states the function is decreasing for all real values of x where x < -4.

If a function is decreasing, it means that as the value of x decreases, the value of the function also decreases. In this case, it indicates that as x becomes more negative, the function's values decrease.

Therefore, the statement that correctly describes the behavior of the function is that it is decreasing for all real values of x where x < -4.

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The domain of the function is 0 ≤ b ≤ 6, and the range of the function is 30 ≤ c ≤ 174.

The function that models the total weight of a crate with b boxes inside is given as:

c = 24b + 30

We know that each crate can hold a maximum of 6 boxes. Therefore, the number of boxes inside the crate can only take values from 0 to 6.

Domain:

The number of boxes b can take values from 0 to 6. Therefore, the domain of the function is:

0 ≤ b ≤ 6

Range:

To find the range of the function, we need to consider the maximum and minimum values that c can take when

0 ≤ b ≤ 6.

When b = 0, the crate is empty, and the total weight of the crate is:

c = 24(0) + 30 = 30.

When b = 6, the crate is full with 6 boxes, and the total weight of the crate is:

c = 24(6) + 30 = 174.

Therefore, the range of the function is:

30 ≤ c ≤ 174

We can then say the domain of the function is 0 ≤ b ≤ 6, and the range of the function is 30 ≤ c ≤ 174.

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The mean value Taylor would use is 10.23 seconds.

To calculate the mean value for Taylor's recorded times, we add up the individual times (10 seconds, 10.3 seconds, and 10.4 seconds) to obtain a total of 30.7 seconds.

we divide this total by the number of trials, which in this case is 3.

30.7 seconds divided by 3 equals approximately 10.23 seconds.

The mean value of Taylor's recorded times for her car's trials is approximately 10.23 seconds.

The mean value is often used as a measure of central tendency to represent the average of a set of values.

In this case, it represents the average time recorded by Taylor during her trials.

By calculating the mean, we can compare this value with the mean times of other cars to assess performance.

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Answer:

Constant

Step-by-step explanation:

What is an exponential function?

An exponential function is a function with the general form y = abx, a ≠ 0, b is a positive real number and b ≠ 1. In an exponential function, the base b is a constant. The exponent x is the independent variable where the domain is the set of real numbers.

In this case, y=ab^x

where 0.983 is in our b term, which gives the meaning that number is our constant in this exponential function.

Solving for dz/dt, we get:

dz/dt ≈ 11.650 ft/sec.

So, after another minute, the distance between Claire and Anna is changing at a rate of approximately 11.650 ft/sec.

Hi there! To answer this question, we can use the Pythagorean theorem and implicit differentiation. Let x be the distance Claire runs east and y be the distance Anna runs north. After 1 minute, Claire has already run 12 * 60 = 720 ft. After another minute, x = 720 + 12t, and y = 7t.

Now, we can set up the Pythagorean theorem: x^2 + y^2 = z^2, where z is the distance between them. Substituting the expressions for x and y, we get (720 + 12t)^2 + (7t)^2 = z^2.

To find the rate at which the distance between them is changing (dz/dt), we need to differentiate both sides of the equation with respect to time, t:

2(720 + 12t)(12) + 2(7t)(7) = 2z(dz/dt).

Now, we can plug in the values for t = 2 minutes:

2(720 + 24)(12) + 2(14)(7) = 2z(dz/dt).

Simplifying, we get:

34560 + 392 = 2z(dz/dt).

After 2 minutes, Claire has run 12(120) = 1440 ft, and Anna has run 7(60) = 420 ft. Using the Pythagorean theorem, we can find z:

z = √(1440^2 + 420^2) ≈ 1500 ft.

Now we can find dz/dt:

34952 = 2(1500)(dz/dt).

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Answer:

The answer to your problem is, 39

Step-by-step explanation:

In order to find the area of the triangle use the formula down below:

A = [tex]\frac{h_{b} b}{2}[/tex]

Base = 13

Height = 6

Replace them equals:

= [tex]\frac{6*13}{2}[/tex] = 39

Thus the answer to your problem is, 39

The simplified expression of 100-3(4. 25)-13-4(2. 99) is 48.29.

What is PEMDAS?

PEMDAS stands for Parentheses, Exponents, Multiplication and Division (from left to right), and Addition and Subtraction (from left to right). It is a mnemonic or acronym used to remember the order of operations when simplifying mathematical expressions.

To simplify the expression 100-3(4.25)-13-4(2.99), you can follow the order of operations (PEMDAS) which is:

Parentheses

Exponents

Multiplication and Division (from left to right)

Addition and Subtraction (from left to right)

Using this order, you can simplify the expression as follows:

100 - 3(4.25) - 13 - 4(2.99)

= 100 - 12.75 - 13 - 11.96 // multiply 3 and 4 with their respective numbers

= 62.29 - 13 - 11.96 // perform subtraction within parentheses

= 48.29 // perform final subtraction

Therefore, the simplified expression is 48.29.

To learn more about PEDMAS from the given link:

https://brainly.com/question/24086845

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