MATHEMATICS COLLEGE

Find the angle of rotation about the center of the regular pentagon that maps A to E

Answers

Answer 1

Answer:

Answer:

C 288

Step-by-step explanation:

using counter clockwise rotation

360/5 x 4 =288

Related Questions

A preliminary sample of holiday shoppers revealed that the standard deviation of the amount of money they are planning to spend on gifts during the coming holiday season is $80. How many holiday shoppers should be sampled in order to estimate the average amount of money spent on gifts by all holiday shoppers with a margin of error of $7 and with a 99% confidence
A CPU manufacturer is interested in studying the relationship between clock speed and the operating temperature that results at that clock speed for a particular CPU model. Let x be the clock speed in MHz and let Y be the temperature in ^{\circ}C . The following data was collected:i xi yi1 350 31.42 360 35.63 370 41.84 380 51.05 390 56.86 400 62.87 410 67.4a) Find the equation of the regression line.b) Estimate the temperature for clock speed x = 430 MHz.c) Find the 95% confidence interval for \beta .d) Compute the coefficient of determination R^{2} ?. Is this a high quality fit?
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Show steps how to solve for y!!!!!2y+2=3y/2Please help me

If 25% is 14, what is 100%?

Answers

Answer:

Step-by-step explanation:

25% = 14

Therefore,

25%*4 = 14*4

100% = 56

Emily has 27 Barbie dolls. She put equal number of dolls in each of 5 boxes. How many dolls are left over?

Answers

Answer:

2 barbies are left over

Step-by-step explanation:

5(5)=25

27-25=2

Leaving 2 barbies.

In 1970, 36% of first year college students thought that being "very well off financially is very important or essential." By 2000 the percentage had increased up to 74%. These percentages are based on nationwide multistage cluster samples.a) Is the difference important? Or does teh question make sense?
b) Does it make sense to ask if the difference is statisically significante? Can you answer on the basis of the informations given?
c) Repeat b), assuming the percentages are based on independant simple random samples of 1,000 first year college students drawn each year.

Answers

Answer:

a. The difference is important but the question does not make sense

b. Yes, it makes sense to ask if the difference is statistically significant.

c. Please check explanation

Step-by-step explanation:

From the question, we identify the following relation;

$H_(o)$ : $P-P_(1)$ = 0

$H_(A)$ : $P-P_(1)$ ≠ 0

a) The difference is important as asked, but the cultural atmosphere difference of over 30 years makes the question somehow not making sense

b) Yes, it makes sense. In order to answer, it is necessary to know the sample size of the year 2000 survey.

We can answer the question on the basis of the information given.

c) We proceed here as follows;

α = 0.05 , $Z_(alpha/2)$ = 1.96 ( This is the critical value)

Thus, z = (0.74-0.36)/√(0.36-0.64)/1000 = 25.03

We make the following conclusions; Since 25.03 > 1.96, the null hypothesis $H_(o)$ is rejected which means that the proportion of people who think being well officially is important has changed since 1970.

A box contains 8 chocolate, 4 powdered sugar, 6 cinnamon, and 6 red velvet munchkins. If you grab a munchkin, eat it, and then grab another one, what is P(chocolate, and then red velvet)? Show your work.

Answers

Answer:

ok so there is 24 munchkins in the box and the probability of picking a chocolates is 1/3 and the probability of picking a red velvet is 1/4 so the if we multiply these together the probability of picking a chocolates then a red velvet is 1/12 or 8.3 percent

The quotient of k and 9 is less than 1/3

Answers

Answer:

k/9 < 1/3

k < 3

Step-by-step explanation:

quotient is division

k/9 < 1/3

Multiply each side by 9

k < 9/3

k < 3

For #7 Find the measure of each numbered angle in the rectangle?

Answers

Answer:

1= 29

2= 61

3= 90

4= 29

5= 90

Step-by-step explanation:

A rectangle has 4 - 90 degree angles. This means angles 3 and 5 are 90. This means the other angle will be split into two parts that add together to 90. If one is 61 then the other is 29. This is angle 4. This means angle 2 is 61 and angle 1 is 29 because rectangles have parallel sides.