25 points! if 1000 raffle ticket are sold for $1 each and there are ten $20, five $50, and one $100 prize, what is the expected value of a ticket?​

Answers

Answer 1

The expected value of a ticket in this raffle is $12.50.

We have to given that;

1000 raffle ticket are sold for $1 each and there are ten $20, five $50, and one $100 prize.

Now, For the expected value of a ticket, we need to multiply the probability of winning each prize by the amount of each prize, and then add up those values.

Hence, In this case, there are a total of 16 prizes as,

⇒ (10 $20 prizes, 5 $50 prizes, and 1 $100 prize),

Thus, the probability of winning any one prize is,

⇒ 1/16

So, the expected value of a ticket would be:

= (10/16) $20 + (5/16) $50 + (1/16) x $100

= $12.50

Therefore, the expected value of a ticket in this raffle is $12.50.

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Related Questions

11 term of 7 -28 112

Answers

The 11th term of this geometric sequence 7 -28, 112, ....​ include the following: 7,340,032.

How to calculate the nth term of a geometric sequence?

In Mathematics, the nth term of a geometric sequence can be calculated by using this mathematical equation (formula):

aₙ = a₁rⁿ⁻¹

Where:

aₙ represents the nth term of a geometric sequence.r represents the common ratio.a₁ represents the first term of a geometric sequence.

Next, we would determine the common ratio as follows;

Common ratio, r = a₂/a₁

Common ratio, r = -28/7

Common ratio, r = -4

For the 11th term, we have:

a₁₁ = 7(-4)¹¹⁻¹

a₁₁ = 7,340,032.

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Pairs of twins are numbered 1, 1, 2, 2, 3, 3, and so on. They are seated

in a circle so that the least number of gaps between two twins always

equals their assigned number. This is called a twin circle. Note that this

means there is no person between the twins numbered 1 and 1, there is

just one person between the twins numbered 2 and 2, and so on.

Reflections (flips) and rotations (turns) of a twin circle are regarded as

the same. For example, the following are the same twin circles for 4

pairs of twins

Answers

a) Two different twin circles for five pair of twins are ( 5,2,4,2,3,5,4,3,1,1,3) and ( 3,1,1,3,4,5,3,2,4,2,5).

b) No twin circles in 3 pair of twins because any of arrangement of them cannot fulfil the condition of twin circle.

c) The partial twin circle ( third circle) present in above figure can't be completed because 4 positions are fixed there and after that number of persons more than seats.

We have a pair twins are numbered 1, 1, 2, 2, 3, 3, and so on. They all seated in a circle so that the least number of gaps between two twins always

equals their assigned number. This is called a twin circle. That is Number of persons between 1 and 1 twins = 0

Number of persons between 2 and 2 twins = 1,

so on.. Reflections (flips) and rotations (turns) of a twin circle are regarded as the same.

a) We have to make two twin circles for five pair twins. The arrangement of pair twins in two different ways with the satisfaction of conditions. So, first arrangement is ( 5,2,4,2,3,5,4,3,1,1,3) and

other arrangement is ( 3,1,1,3,4,5,3,2,4,2,5).

b) There is no twin circle between the arrangement of 3 twin pairs. Because in case of 3 twin pair total members = 3×2 = 6 and number of members can be seat between pairs are 3( 1+2+0). As we know, it is fixed that no person between (1,1). So, we cannot be arrange the 2 pairs with desirable 3 gaps that is 1 person between (2,2) and 2 persons between (3,3).

c) There is total 12 positions to seat in circles. The position of 6 and 1 is fixed. According to above scenario, position next to 1 is for 1 (clockwise) and 5th position from given 1 position in (clockwise) is other member of twin 6. Now, four positions are fixed. Eight positions are left and 4 twin pairs (2,2) , (3,3), (4,4),(5,5). Number of persons seat between 4 pairs are 10 in counts ( greater than position ) so, no such arrangement is possible. Hence, this partial circle can't be completed.

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Complete question:

The above figure complete question.

Pairs of twins are numbered 1, 1, 2, 2, 3, 3, and so on. They are seated in a circle so that the least number of gaps between two twins always

equals their assigned number. This is called a twin circle. Note that this means there is no person between the twins numbered 1 and 1, there is just one person between the twins numbered 2 and 2, and so on. Reflections (flips) and rotations (turns) of a twin circle are regarded as the same. For example, the following are the same twin circles for 4 pairs of twin.

a) Find two twin circles for five pairs of twin

b) Explain why no twin circles in 3 pairs of twin

c) explain why this partial twin circle can't be completed ? ( third circle)

What is the volume of the composite figure if both the height and the diameter of the cylinder are 2. 5 feet? Give the exact answer and approximate to two decimal places.



Thank you!

Answers

19.29 cubic feet  is the volume of the composite figure if both the height and the diameter of the cylinder are 2. 5 feet

Without knowing the specific shape of the composite figure, it is impossible to give an exact answer. However, we can provide a general formula for the volume of a cylinder with height h and diameter d, and assume that the composite figure consists of a cylinder and some other shape.

The volume of a cylinder is given by the formula V = πr^2h, where r is the radius of the cylinder. The diameter of the cylinder is given as 2.5 feet, which means the radius is 1.25 feet.

If the height of the cylinder is also 2.5 feet, then the volume of the cylinder is:

V_cylinder = π(1.25)^2(2.5) = 6.15π cubic feet (exact)

To approximate to two decimal places, we can use the approximation π ≈ 3.14:

V_cylinder ≈ 6.15(3.14) = 19.29 cubic feet (approximate to two decimal places)

However, since we do not know the specific shape of the composite figure, we cannot give an exact answer for its volume.

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A styrofoam model of a volcano is in the shape of a cone. The model has a circular base with a diameter of 48 centimeters and a height of 12 centimeters. Find the volume of foam in the model to the nearest tenth. Use 3. 14 for TT. ​

Answers

The volume of foam in the model is approximately 27,211.5 cubic centimeters

The radius of the circular base can be found by dividing the diameter by 2:

radius = diameter / 2 = 48 cm / 2 = 24 cm

The formula for the volume of a cone is:

V = (1/3) * π * r² * h

where π is approximately 3.14, r is the radius of the circular base, and h is the height of the cone.

Substituting the values we have:

V = (1/3) * 3.14 * 24² * 12

V = 27,211.52 cm³

Rounding this to the nearest tenth, we get:

V ≈ 27,211.5 cm³

Therefore, the volume of foam in the model is approximately 27,211.5 cubic centimeters

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A production line operation is designed to fill cans with tomato sauce with a mean weight of 20 ounces. A sample of 25 cans is selected to test whether overfilling or under filling is occurring in the production line and they should stop and adjust it. Sample statistics (mean and standard deviation) are calculated. Assume the population of interest is normally distributed.



Let the p-value be 0. 067 for this sample. At 0. 05 level of significance, it can be concluded that the mean filling weight of the population is :_________



a. Significantly different than 20 ounces


b. Not significantly different than 20 ounces


c. Significantly less than 20 ounces


d. Not significantly less than 20 ounces

Answers

At a significance level of 0.05, the critical value is typically chosen as 1.96 for a two-tailed test. Comparing this critical value with the obtained p-value of 0.067, which is greater than 0.05, indicates that the result is not statistically significant.

At 0.05 level of significance, when we fail to reject the null hypothesis, it means that there is not enough evidence to support the alternative hypothesis. In this case, the null hypothesis states that the mean filling weight of the population is equal to 20 ounces. Since the data does not provide strong evidence to suggest otherwise, we conclude that the mean filling weight is not significantly different from 20 ounces.

Hence, the answer is (b) "Not significantly different than 20 ounces."



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Chaz is writing an informal proof to show that circle q is similar to circle p after a similarity transformation followed by a rigid transformation which two translations in sequence should chaz use map circle q onto circle p​

Answers

Chaz builds a connection between points on circle Q and points on circle P by carrying out these two translations while maintaining the size and shape of the circles.

Chaz may apply two translations sequentially to map circle Q onto circle P, demonstrating that they are comparable following a similarity transformation followed by a rigid transformation.

The center of circle Q can first be translated to the center of circle P by Chaz. The two circles' centers will match thanks to this translation.

After that, Chaz can do another translation to line up a point on circle Q's circumference with a similar point on circle P's circumference. The matching points on the circles are aligned as a result of this translation.

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Type the correct answer in each box. Use numerals instead of words. If necessary, use / for the fraction bar.


Lab tests of a new drug indicate a 70% success rate in completely curing the targeted disease. The doctors at the lab created the random data in the table using a representative simulation. The letter E stands for "effective," and N stands for "not effective. "



EEEE NEEE EEEE EEEN NEEN


NEEE EENE NNNE NEEN EENE


NENE EEEE EEEE NNNE ENEE


NEEN ENEE EENN ENNE NEEE


ENEN EEEE EEEN NEEE EENN


EENE EEEN EEEE EENE EEEE


ENEE ENNN EENE EEEE EEEN


NEEE ENEE NEEE EEEE EEEE


NENN EENN NNNN EEEE EEEE


ENNN NENN NEEN ENEE EENE


The estimated probability that it will take at least five patients to find one patient on whom the medicine would not be effective is BLANK The estimated probability that the medicine will be effective on exactly three out of four randomly selected patients is BLANK.


PLEASE HELP I NEED HELP :(


50 POINTS

Answers

To find the estimated probability that it will take at least five patients to find one patient on whom the medicine would not be effective, we need to find the probability of getting NNNNN as the first five patients. Since the success rate is 0.3 and the failure rate is 0.7, the probability of getting NNNNN is:

0.7 x 0.7 x 0.7 x 0.7 x 0.7 = 0.16807

Therefore, the estimated probability that it will take at least five patients to find one patient on whom the medicine would not be effective is 0.16807.

To find the estimated probability that the medicine will be effective on exactly three out of four randomly selected patients, we need to count the number of ways we can select three patients out of four and multiply it by the probability of getting EEE and NEEE for the selected patients and non-selected patients, respectively. The number of ways to select three patients out of four is:

4C3 = 4

The probability of getting EEE and NEEE for the selected patients and non-selected patients, respectively, is:

(0.7)^3 x (0.3) x (0.7) = 0.1029

Therefore, the estimated probability that the medicine will be effective on exactly three out of four randomly selected patients is 4 x 0.1029 = 0.4116 (rounded to 4 decimal places).

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Can someone help me asap? It’s due today!!

Answers

Using the fundamental counting principle, the total number of outcomes given m outcomes and n outcomes will be m*n. A helpful way to think about this is by using a tree.

Say we have 2 shirts and 3 pairs of pants. We can show all possible outcomes using a tree like this in the picture attached.

So, by looking at the tree, we can see that every different shirt has 3 different pairs of pants that can go with it to make a combination. Thus, the total amount of combinations is the number of pants (3) that can go with each type of shirt (2). So, 3*2 is 6 total combinations.

In this example, m was 2 and n was 3. Applied to any number of individual outcomes, the total amount will be m*n.

Evaluate ∫∫∫ (4z^3 + 3y^2 + 2x) dv

Answers

The value of the given triple integral is ∫∫∫ (4z^3 + 3y^2 + 2x) dv = 1/2.

To evaluate the given triple integral, we need to determine the limits of integration for x, y, and z. As there are no specific bounds given, we can assume that the region of integration is the entire space. Therefore, the limits of integration for x, y, and z will be from negative infinity to positive infinity.

Thus, we have:

∫∫∫ (4z^3 + 3y^2 + 2x) dv = ∫∫∫ 4z^3 dv + ∫∫∫ 3y^2 dv + ∫∫∫ 2x dv

Using the fact that the integral of an odd function over a symmetric interval is zero, we can see that the integral of 2x over the entire space is zero.

Hence, we are left with evaluating the integrals of 4z^3 and 3y^2 over the entire space.

∫∫∫ 4z^3 dv = 4 ∫∫∫ z^3 dxdydz

Using the fact that the integral of an odd function over a symmetric interval is zero, we can see that the integral of z^3 over the entire space is zero.

Thus, we have ∫∫∫ 4z^3 dv = 0.

Similarly, we can evaluate ∫∫∫ 3y^2 dv as follows:

∫∫∫ 3y^2 dv = 3 ∫∫∫ y^2 dxdydz

Since the limits of integration are from negative infinity to positive infinity, the integrand is an even function. Therefore, we can write:

∫∫∫ y^2 dxdydz = 2 ∫∫∫ y^2 dx dz dy

Now, using cylindrical coordinates, we can express y^2 as r^2 sin^2 θ and the differential element dv as r dz dr dθ.

Therefore, we have:

∫∫∫ y^2 dxdydz = 2 ∫∫∫ r^4 sin^2 θ dz dr dθ

Using the fact that the integral of sin^2 θ over a full period is π/2, we can evaluate the integral as follows:

∫∫∫ y^2 dxdydz = 2 π/2 ∫0∞ ∫0^2π ∫0^∞ r^4 sin^2 θ dz dr dθ

Simplifying the integral, we get:

∫∫∫ y^2 dxdydz = (π/2) (2π) (1/5) = π^2/5

Hence, we have:

∫∫∫ (4z^3 + 3y^2 + 2x) dv = 0 + π^2/5 + 0 = π^2/5

Finally, we can simplify the result as π^2/5 = 1/2. Therefore, the value of the given triple integral is 1/2.

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Casey recently purchased a sedan and a pickup truck at about the same time for a new business. The value of the sedan S, in dollars, as a function of the number of years t after the purchase can be represented by the equation S(t)=24,400(0. 82)^t. The equation P(t)=35,900(0. 71)^t/2 represents the value of the pickup truck P, in dollars, t years after the purchase. Analyze the functions S(t) and P(t) to interpret the parameters of each function, including the coefficient and the base. Then use the interpretations to make a comparison on how the value of the sedan and the value of the pickup truck change over time

Answers

Answer: Specifically, the pickup truck has lost about 56% of its value compared to the initial value, while the sedan has lost about 58% of its value.

Step-by-step explanation:

The functions S(t) and P(t) represent the value of the sedan and pickup truck, respectively, as a function of time t in years since the purchase. Let's analyze each function:

For S(t)=24,400(0.82)^t, the coefficient 24,400 represents the initial value or starting point of the function. This means that the value of the sedan at the time of purchase was $24,400.

The base 0.82 represents the rate of depreciation or decrease in value of the sedan over time. Specifically, the sedan's value decreases by 18% per year (100% - 82%).

For P(t)=35,900(0.71)^t/2, the coefficient 35,900 represents the initial value or starting point of the function.

This means that the value of the pickup truck at the time of purchase was $35,900. The base 0.71 represents the rate of depreciation or decrease in value of the pickup truck over time.

Specifically, the pickup truck's value decreases by approximately 29% every two years, since the exponent is divided by 2.

Comparing the two functions, we can see that the initial value of the pickup truck was higher than the initial value of the sedan.

However, the rate of depreciation of the pickup truck is greater than that of the sedan. This means that the pickup truck will lose its value at a faster rate than the sedan.

For example, after 5 years, we can evaluate each function to see the values of the sedan and pickup truck at that time:

S(5) = 24,400(0.82)^5 ≈ $10,373.67

P(5) = 35,900(0.71)^(5/2) ≈ $15,864.48

We can see that after 5 years, the pickup truck is still worth more than the sedan, but its value has decreased by a greater percentage. Specifically, the pickup truck has lost about 56% of its value compared to the initial value, while the sedan has lost about 58% of its value.

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HELP PLS!!


A food company is designing box for several products each box is a rectangular prism. The food company is now designing soup boxes. The largest box of soup will be a dilation of the smallest box using a scale factor of two. The smallest box must hold eight fluid ounces or about 15 in. ³ of soup. Find a set of dimensions for the largest box round to the nearest tenth

Answers

The set of dimensions for the largest box is: 4 in x 4 in x 3.8 in.

We know that the smallest box must hold 8 fluid ounces or 15 in³ of soup. Let's assume the dimensions of the smallest box to be x, y, and z.

Then, we have:

[tex]x * y * z = 15[/tex]

Now, the largest box will be a dilation of the smallest box using a scale factor of 2. This means that every dimension of the smallest box will be multiplied by 2 to get the dimensions of the largest box.

So, the dimensions of the largest box will be 2x, 2y, and 2z.

Now, we need to find the dimensions of the smallest box. We can start by solving the equation x * y * z = 15 for one of the variables, say z:

[tex]z = 15 / (x * y)[/tex]

Substituting this value of z in the expression for the dimensions of the largest box, we get:

[tex]2x * 2y * (15 / (x * y))[/tex]

Simplifying this expression, we get:

[tex]4 * 15 = 60[/tex]

So, the dimensions of the largest box are approximately 4 in by 4 in by 3.8 in (rounded to the nearest tenth).

Therefore, the set of dimensions for the largest box is: 4 in x 4 in x 3.8 in.

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Baking company wants to know how many muffins it made in one night if it made b muffins in the first hour then threw half of them away on the second hour due to sour milk. on the third hour they made 3 times as much as the first two hours and then on last hour made 7 more. write an expression of how many they made in total and simplify.

Answers

The expression is (5/2)b + 7 for muffins is made by the baking company  in total in one night.

To find the total number of muffins the baking company made in one night, we can use the following expression:

Total = b - (b/2) + 3b + 7

Let's break it down by each hour:

- In the first hour, the company made b muffins.
- In the second hour, they threw away half of the muffins made in the first hour, which is b/2. So, they only have b - (b/2) muffins left.
- In the third hour, they made 3 times as much as the first two hours, which is 3b.
- In the last hour, they made 7 more muffins.

If we simplify the expression by combining like terms, we get:

Total = (5/2)b + 7

Therefore, the baking company made (5/2)b + 7 muffins in total in one night.

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Question 4(Multiple Choice Worth 2 points) (Identifying Transformations LC) Use the image to determine the type of transformation shown. Graph of polygon VWXYZ with W at point 3 comma negative 2. A second polygon V prime W prime X prime Y prime Z prime with W prime at point negative 3 comma negative 2. 270° counterclockwise rotation Horizontal translation Reflection across the x-axis Reflection across the y-axis

Answers

Reflection across the y-axis is the transformation used to the polygon ABCD. The type of transformation shown is a horizontal translation.

What is Polygon?

A polygon is closed geometric shape that is made up of straight line segments connected end to end. It is  two-dimensional shape that has three or more sides, angles, and vertices.

In a polygon, sides do not cross each other and vertices are points where two sides meet.

1)  The type of transformation shown in the image is a Horizontal translation, because the second polygon A'B'C'D' is moved horizontally to the right of the original polygon ABCD while maintaining its size and shape.

2) 90° clockwise rotation

3)  90° counterclockwise rotation.

4)  Reflection across the x-axis.

5)  Reflection across the y-axis.

6)  Reflection across the y-axis

7)  the correct answer is 180° clockwise rotation.

The type of transformation shown is a horizontal translation, since the image has been shifted horizontally from the original position.

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complete question -

If the an average American makes around $ 40,000 per year for his or her lifetime and works from age 22 to 65, what amount will he or she pay in taxes for their entire lifetime?

Answers

We can see here that the amount he or she will pay in taxes for their entire lifetime is: $344,000

What is tax?

Tax is a financial obligation that all people, businesses, and other types of entities must fulfill for a government organization.

Let us say that an average American makes $40,000  for his or her lifetime and works from age 22 to 65, and pays a combined federal and state income tax rate of 20%, the amount of taxes paid per year would be:

$40,000 x 0.20 = $8,000

Over a 43-year period (from age 22 to 65), the total amount of taxes paid would be: $8,000 x 43 = $344,000

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Jen is filling bags with M&Ms. She has 5 1/2 cups of M&Ms. She needs 1 1/4 cups of M&Ms to fill each bag. How many bags can Jen fill completely?

Answers

Jen can fill 4 bags completely with the 5 1/2 cups of M&Ms she has, given that each bag requires 1 1/4 cups of M&Ms.

First, we need to find the total number of cups of M&Ms Jen has

5 1/2 cups = 11/2 cups

Then, we divide the total number of cups by the number of cups needed to fill each bag

(11/2 cups) ÷ (1 1/4 cups/bag)

To divide by a fraction, we can multiply by its reciprocal

(11/2 cups) x (4/5 cups/bag)

= 44/10 cups

Simplifying, we get

= 4 2/10 cups

= 4 1/5 cups

So, Jen can fill 4 bags completely.

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How do I fill this chart with the information given?

Answers

Fill the  two-way frequency table as shown in the image attached.

How to fill the chart with the information given?

A two-way frequency table is a way of displaying frequencies for two different categories collected from a single group of people.  One category is represented by the rows and the other is represented by the columns.

For the frequency table:

Total = 82

Apple

Total = 24

Students = 22

Teachers = 24 - 22 = 2

Grape

Total = 82 - 25 -24 = 33

Students = 33 - 4 = 29

Orange

Teachers = 25 - 24 = 1

Students

Total  = 22 + 29 + 24 = 75

Teachers

Total  = 2 + 4 + 1 = 7

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a beverage company published the probabilities of winning in a bottle-top prize promotion as 5% win a free beverage and 15% win a free music download, while the remaining 80% are non-winners. a consumer plans to sample 200 bottles and conduct a chi-square goodness of fit test to see whether this distribution claimed by the company fits the observed data. what is the expected cell count for music downloads in this study?

Answers

The expected cell count for free music downloads in a sample of 200 bottles from a beverage company's prize promotion is 30, based on the company's claimed probabilities of winning.

To find the expected cell count for music downloads in this study, we first need to calculate the total expected counts for each category of the prize promotion.

Given that the company claims that 5% of the bottle-tops will win a free beverage and 15% will win a free music download, the expected counts for each category in a sample of 200 bottles are

Expected count for free beverages = 0.05 * 200 = 10

Expected count for free music downloads = 0.15 * 200 = 30

Expected count for non-winners = 0.80 * 200 = 160

The expected count for music downloads is 30, which is calculated by multiplying the probability of winning a free music download (0.15) by the sample size (200). Therefore, the expected cell count for music downloads in this study is 30.

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A figure with parallel Lines m and n is shown.

Answers

The measure of angles A, B, and C for the given parallel lines will be 53°,90°, and 143° corresponding.

What is an example of a parallel line?

In terms of geometry, parallel lines are two separate lines that never cross each other and are located in the same plane. Both vertical and horizontal can be used. A zebra crossing, rows of notebooks and nearby railway tracks are just a few instances of parallel lines that we encounter every day.

As per the parallel lines m and n.

The adjacent angle of B = 37° (corresponding angle same)

m∠B = 180° - (53° + 37°) = 90°

m∠A = 53° (corresponding angle same)

m∠C = 180° - 37° = 143°

Hence "The measure of angles A, B, and C for the given parallel lines will be 53°,90°, and 143° corresponding".

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Which inequalities are true when m= -4

Answers

The inequailty y < m + 4 would be true when m = -4 and all values of y are less than 0

Which inequalities are true when m= -4

From the question, we have the following parameters that can be used in our computation:

The statement that m = -4

The above value implies that we substitute -4 for m in an inequality and solve for the other variable (say y)

Take for instance, we have

y < m + 4

Substitute the known values in the above equation, so, we have the following representation

y < -4 + 4

Evaluate

y < 0

This means that the inequailty y < m + 4 would be true when m = -4 and all values of y are less than 0

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f(x) = x(x2 − 4) − 3x(x − 2)

Answers

To simplify the given function F(x) = x(x^2 - 4) - 3x(x - 2), we need to use the distributive property and combine like terms.

First, we distribute x in the first term, and we get:

F(x) = x^3 - 4x - 3x^2 + 6x

Next, we can combine like terms:

F(x) = x^3 - 3x^2 + 2x

Therefore, the simplified form of the given function F(x) = x(x^2 - 4) - 3x(x - 2) is F(x) = x^3 - 3x^2 + 2x.

Suppose a ball is thrown and follows the f(x)=-0.25(x-3)2+6.25. find the ball's initial and maximum height?
(show work)

Answers

Maximum Height of the ball: 6.25 units


To find the initial and maximum height of the ball following the function f(x) = -0.25(x-3)^2 + 6.25, we need to evaluate the function at the initial position and find the vertex of the parabola.

Initial height:
When the ball is initially thrown, it's at position x=0. Plug this value into the function:

f(0) = -0.25(0-3)^2 + 6.25
f(0) = -0.25(-3)^2 + 6.25
f(0) = -0.25(9) + 6.25
f(0) = -2.25 + 6.25
f(0) = 4

The initial height of the ball is 4 units.

Maximum height:
The maximum height corresponds to the vertex of the parabola. Since the function is in the form f(x) = a(x-h)^2 + k, the vertex is at the point (h, k). In our case, h = 3 and k = 6.25.

The maximum height of the ball is 6.25 units.

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Convert the given radian measure to a degree measure.



Negative 1. 7 pi


a.


153 degrees


b.


Negative 306 degrees


c.


Negative 153 degrees


d.


306 degrees





Please select the best answer from the choices provided

Answers

The given radian measure -1.7 pi is equivalent to -306 degrees.

How to convert radians to degrees?

The correct answer is option (b), Negative 306 degrees. This conversion takes into account the negative sign of the radian measure, resulting in a negative degree measure to convert a radian measure to a degree measure, we use the conversion factor that 180 degrees is equal to π radians.

Given the radian measure -1.7π, we can calculate the corresponding degree measure by multiplying -1.7π by the conversion factor:

Degree measure = (-1.7π) * (180 degrees / π)

The π in the numerator and denominator cancels out, resulting in:

Degree measure = -1.7 * 180 degrees

Calculating the value, we have:

Degree measure = -306 degrees

Therefore, the correct answer is option b) Negative 306 degrees.

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(a) Find an equation of the tangent plane to the surface at the given point. x2 + y2 + z2 = 14, (1, 2, 3) x + 3y + 22 = 14 14 (b) Find a set of symmetric equations for the normal line to the surface at the given point. Ox - 1 = y - 2 = z - 3 OX-1-y-2-2-3 14 14 Y Y 2 3 X-1 _ y - 2 2-3 2 3 y 14 14 14 o 1 2

Answers

An equation of the tangent plane to the surface at the given point is x + 2y + 3z = 14. A set of symmetric equations for the normal line to the surface at the given point is (x-1)/2 = (y-2)/4 = (z-3)/6.

The gradient of the surface is given by

∇f(x, y, z) = <2x, 2y, 2z>

At point (1, 2, 3), the gradient is

∇f(1, 2, 3) = <2, 4, 6>

The equation of the tangent plane can be found using the formula

f(x, y, z) = f(a, b, c) + ∇f(a, b, c) · <x-a, y-b, z-c>

Plugging in the values we have

x + 2y + 3z = 14

The direction vector of the normal line is the same as the gradient of the surface at the given point

<2, 4, 6>

To find symmetric equations for the line, we can use the parametric equations

x = 1 + 2t

y = 2 + 4t

z = 3 + 6t

Eliminating the parameter t, we get the symmetric equations

(x-1)/2 = (y-2)/4 = (z-3)/6

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I just need help on B PLS :)


The data modeled by the box plots represent the battery life of two different brands of batteries that Mary


tested.


(a) What is the median value of each data set? (just fyi I know the answer to this already) it's Brand X 13 and Brand Y 16


(b) Compare the median values of the data sets. What does this comparison tell you in terms of the


situation the data represent?

Answers

Comparison of median values indicate that brand Y has higher battery life than brand X.

How do the median values of the two battery brands compare and what does this reveal about the situation?

Comparing the median values of the two data sets (Brand X with a median of 13 and Brand Y with a median of 16) indicates that the battery life of Brand Y is likely to be longer than that of Brand X.

The median value represents the middle value of the data set, and as such, is a measure of central tendency. Since the median value is not affected by extreme values or outliers, it provides a more reliable measure of the typical value of the data set.

In this case, the higher median value of Brand Y suggests that the majority of the batteries in that set have a longer battery life compared to those in Brand X. This information can be useful in making informed decisions about which brand of batteries to purchase for a particular application.

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Prove the following trigonometric identities
csc x - sin x - cosx cos x

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To prove the trigonometric identity csc(x) - sin(x) - cos(x)cos(x), we will start by simplifying the left-hand side of the equation using trigonometric definitions and identities.

Recall that csc(x) = 1/sin(x). We will use this definition to rewrite the left-hand side of the equation:

1/sin(x) - sin(x) - cos(x)cos(x)

Now, we will find a common denominator for the terms in the equation. In this case, the common denominator is sin(x). To do this, we will multiply sin(x) to the second term:

(1 - sin^2(x) - cos(x)cos(x)sin(x)) / sin(x)

Next, we will use the Pythagorean identity sin^2(x) + cos^2(x) = 1 to replace sin^2(x) in the expression:

(1 - (1 - cos^2(x)) - cos(x)cos(x)sin(x)) / sin(x)

Simplifying the expression, we get:

(cos^2(x) - cos(x)cos(x)sin(x)) / sin(x)

Now, we can factor out cos(x) from the numerator:

cos(x)(cos(x) - sin(x)) / sin(x)

This expression is equivalent to the given identity, so we have proven the trigonometric identity:

csc(x) - sin(x) - cos(x)cos(x) = cos(x)(cos(x) - sin(x)) / sin(x)

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Mean Mode 42 X X X X 43 X X X - 44 Median Range X X 45 X X 46 47 48​

Answers

The mean, median, mode and the range of the data given is 44.21, 44, 44 and 3 respectively.

Given is a dot plot, we need to find the mean, median, mode and the range of the data shared.

So, the data is = 43, 43, 43, 43, 44, 44, 44, 44, 44, 45, 45, 45, 46, 46

So, mean = 43×4+44×5+45×3+46×2 / 14

= 619/14 = 44.21

Median = 44+44/2 = 44

Mode = 44

Range = 46-43 = 3

Hence, the mean, median, mode and the range of the data given is 44.21, 44, 44 and 3 respectively.

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Henry picks 10.38 pounds of apples. He uses 0.3 of the apples to make an apple pie.

Answers

Answer:

Step-by-step explanation:

Of means to multiply

So to find .3 of the 10.38 pounds up apples:

.3 x 10.38

=3.114 pounds of apples were used

Nolan is following his family's macaroni and and cheese recipe. The recipe calls 6 cups of shredded cheese 4 tablespoons of milk. He wants to make a smaller batch, so he uses only 3 cups of shredded cheese

Answers

Nolan is making a smaller batch of his family's macaroni and cheese recipe, and as a result, he has reduced the amount of shredded cheese to 3 cups. The original recipe called for 6 cups of shredded cheese and 4 tablespoons of milk.

However, since Nolan is using only 3 cups of shredded cheese, he will need to adjust the amount of milk he uses as well.

When reducing the amount of cheese, it is important to keep the ratio of cheese to milk consistent. Therefore, if Nolan is halving the amount of cheese, he should also halve the amount of milk. This means that instead of using 4 tablespoons of milk, he should use only 2 tablespoons of milk.

It is important to note that reducing the amount of cheese and milk in a recipe may also affect the overall taste and texture of the dish. However, by following the recipe and adjusting the amounts accordingly, Nolan can still create a delicious and satisfying macaroni and cheese dish.

In summary, when making a smaller batch of a recipe, it is important to adjust the ingredients accordingly while maintaining the same ratios. Nolan is reducing the amount of cheese in his macaroni and cheese recipe and should also reduce the amount of milk in order to keep the same ratio.

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Find the Circumference and area of the circle with the center C=(-1, 6) and a point on the circle A(3, 9). Round to the nearest tenth

Answers

Circumference of circle is 31.4 and area of circle is 78.6

Given, C(-1,6) is center and A(3, 9) is a point on circle.

CA is the radius of the circle.

Using Distance Formula

[tex]r=\sqrt{(3-(-1))^2+(9-6)^2}[/tex]

[tex]r=\sqrt{(4)^2+(3)^2}[/tex]

[tex]r=\sqrt{16+9}[/tex]

[tex]r=\sqrt{25}=5[/tex]

We know the the formula for circumference of circle C = 2πr

C = 2*22/7*5

= 31.428

Rounding to nearest tenth

C = 31.4

Area of the circle = [tex]\pi r^2[/tex]

[tex]A=\frac{22}{7}(5)^2[/tex]

= 78.571

Rounding to nearest tenth

A = 78.6

Hence, circumference of circle is 31.4 and area of circle is 78.6.

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Luka and Janie are playing a coin toss game. If the coin lands heads up, Luka earns a point; otherwise, Janie earns a point. The first player to reach 25 points wins the


game. If 24 of the first 47 tosses have been heads, what is the probability that Janie wins the game?


The probability that Janie wins the game is I.


(Simplify your answer. )

Answers

Probability of Janie winning game = (2⁴⁷ - 1)/2⁴⁷  or approximately 0.999999999999978, using binomial distribution with given information.

How can we find the probability?

We can solve this probability by using the binomial distribution. Let X be the random variable representing the number of heads in the remaining tosses until one of the players wins the game. Since Luka has 24 points, Janie needs to win X heads before Luka wins one more.

We want to find the probability that Janie wins the game, which is the probability that X is greater than or equal to Luka's remaining points needed to win(25 - 24 = 1).

Let p be the probability of the coin landing heads up, and q be the probability of the coin landing tails up, so that p + q = 1. Since the coin is fair, p = q = 1/2.

Using the binomial distribution, the probability that Janie wins the game is:

P(X >= 1) = 1 - P(X = 0)

where

P(X = k) = [tex](47 - 24 choose k) (1/2)^k (1/2)^(47 - 24 - k)[/tex]

= (23 + k choose k) (1/2)⁴⁷

where k = 0, 1, 2, ..., 23.

Therefore,

P(X = 0) = (23 choose 0) (1/2)⁴⁷ = 1/2⁴⁷

P(X >= 1) = 1 - P(X = 0) = 1 - 1/2⁴⁷

Simplifying,

P(X >= 1) = (2⁴⁷ - 1)/2⁴⁷

Therefore, the probability that Janie wins the game is (2⁴⁷ - 1)/2⁴⁷ or approximately 0.999999999999978.

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