5. For each quantity, decide whether circumference or area would be needed to calculate it. Explain or show your reasoning.
a. The distance around a circular track.
b. The total number of equally-sized tiles on a circular floor.
c. The amount of oil it takes to cover the bottom of a frying pan.
d. The distance your car will go with one turn of the wheels.
E. The amount of frosting on the top of a cookie.
F. The amount of tile needed to cover the bottom of a circular pool.

Answer:

45+3.x

Step-by-step explanation:

Each person gets a haircut --> 3.15= 45

x+y=180 a+b=y

180−(a+b)=y

Answer:

5.63

Step-by-step explanation:

i took the test

Answer:

5.63 miles per hour

0.0948 miles per minute

10:40 pace per mile

Answer:

B

Step-by-step explanation:

Apply slope intercept form, y2-y1 / x2 - x1. -6 is y2, -2 is x2, 5 is y1, and -2 is x1.

-6 - 5 / - 2 - (-2)

-11 / -2 + 2

-11 / 0

0

The slope is 0. B is your answer. I hope this helps you!

Answer:

C

Step-by-step explanation:

Hope this helps have a great day. :))))

Answer:

the lines are perpendicular to each other

Step-by-step explanation:

The standard form of equation of a line is y = mx+c

m is the slope of the line

c is the intercept

Given the equations

10x – 3y = 3

3x + 10y = 30

Get the individual slopes

For 10x – 3y = 3

Rewrite in standard form

-3y = -10x + 3

y = 10/3 x - 3/3

y = 10/3 x  - 1

Slope of the line is 10/3

For the equation 3x + 10y = 30

10y = -3x+30

y = -3/10 x + 3

Slope of the line is -3/10

Take the product of the slopes

10/3 * -3/10 = -1

Since the product of their slopes is -1, hence the lines are perpendicular to each other

Answer:

i think c

Step-by-step explanation:

Answer:

A. y=-4/3x

Step-by-step explanation:

The line that passes through those points has a slope of -4/3

Slope intercept form is y=mx+b

whereas m is the slope and b is where the line intercepts the y-axis.

the line intercepts the y-axis at the origin.

Substitute the slope into the equation

y=-4/3x+0

y=-4/3x

Hope this helps. Have a nice day you amazing bean child.

Answer:

78

Step-by-step explanation:

Answer

78

Step-by-step explanation:

The question is incomplete. Here is the complete question.

USA Today reported that 36% of adult drivers admit that they often or sometimes talk on a cell phone when driving. This was based on a random sample of 1004 adult drivers.

a) What is a 90% confidence interval for the true proportion of adult drivers who have often or sometimes talk on a cell phone when driving?

b) What is a 95% confidence interval for the true proportion of adult drivers who have often or sometimes talk on a cell phone when driving?

c) What is a 99% confidence interval for the true proportion of adult drivers who have often or sometimes talk on a cell phone when driving?

d) What do you notice?

Answer and Step-by-step explanation: The way to calculate confidence interval for proportions is by using the following formula:

[tex]z(\sqrt{\frac{p(1-p)}{n} } )[/tex]

where

p is the sample population proportion

n is the number of individuals in the sample

z is z-score associated of the % of confidence

a) A 90% confidence has a z-score of z = 1.645

Calculating:

Interval = [tex]1.645(\sqrt{\frac{0.36(1-0.36)}{1004} } )[/tex]

Interval = [tex]1.645(\sqrt{0.00023} )[/tex]

Interval = [tex]1.645(0.01515)[/tex]

Interval = 0.025

A 90% Confidence interval for true population is between 0.335 and 0.385.

b) A 95% confidence has a z-score of z = 1.96

Since the sample parameter didn't change, the interval will be:

Interval = 1.96(0.01515)

Interval = 0.03

For a 95% confidence, interval is between 0.33 and 0.39.

c) A 99% confidence has a z-score of z = 2.58

Interval = 2.58(0.01515)

Interval = 0.39

For a 99% confidence, interval is between -0.03 and 0.75

d) Confidence interval tells you how certain your results from polling or survey would represent the real population's behaviour. In the experiment above, as the percentage of certainty grows, closer the real population proportion actually is for adult drivers who often or sometimes talk on a cell phone when driving.

Answer:

49.85% of light bulb replacement requests numbering between 37 and 61

Step-by-step explanation:

The Empirical Rule states that, for a normally distributed random variable:

68% of the measures are within 1 standard deviation of the mean.

95% of the measures are within 2 standard deviation of the mean.

99.7% of the measures are within 3 standard deviations of the mean.

In this problem, we have that:

Mean = 37, Standard deviation = 8

Using the empirical (68-95-99.7) rule, what is the approximate percentage of light bulb replacement requests numbering between 37 and 61

37 is the mean

61 = 37 + 3*8, so 61 is three standard deviations above the mean

The normal distribution is symmetric, which means that 50% of the measures are above the mean and 50% are below.

By the Empirical Rule, of the 50% of the measures that are above the mean, 99.7% will be between the mean of 37 and three standard deviations above the mean, which is 61. So, this percentage is:

0.5*0.997 = 0.4985 = 49.85%

Answer:

3 1/2, 3

Step-by-step explanation:

Good luck!

Answer:

(3.5,-3)

hope that helpeddd :)

Answer:

E

Step-by-step explanation:

it has equi which means equal then it has angle. Equal angle triangle

Answer:

E

Step-by-step explanation:

its equal triangle hope this helped good luck

Answer:

[tex] \underline{ \boxed{x = 11} } \\ \underline{ \boxed{ABE = 55}}[/tex]

Step-by-step explanation:

[tex]if \: the \: question \: is \to \\ \overline{AZ} \: \perp \: \overline{CD}, \: m \angle{ABE} = 5x, \\ and \\ \: m \angle{EBD } = 3x + 2\\ but \: m \angle{EBD } + m \angle{ABE} = 90 \\ hence \to \\ (3x + 2) + (5x) = 90 \\ 8x + 2 = 90 \\ 8x = 90 - 2 \\ 8x = 88 \\ x = \frac{88}{8} \\ \boxed{ x = 11} \\ \\ if \: x = 11, \: then \to \\ m \angle{ABE} = \: 5x = 5(11) \\ \boxed{m\angle{ABE} =55}[/tex]

Answer:

5%=0.05=1/20

Step-by-step explanation:

Answer:

yes he is a african american

Step-by-step explanation:

Answer:

36 inches

Step-by-step explanation:

Just multipy 3 by 12.

Answer:

2.99m-4 (less than or equal to symbol after) 20

Step-by-step explanation:

This would come out too 5 movies because 20-4= 16 16-2.99=5.3 but it is impossible to buy 5.3 movies so you would round it down to 5

Georgia made many contributions to the war effort during World War I.

For each Georgia contribution, indicate the industry or group of people who made it. ( 1 answer will be used two times)

Trained Recruits

provided canned goods, uniforms, and bandages

planted victory gardens

Georgia farmers

volunteered for military duty

Georgia military facilities

grew cotton for clothing

CHOICES:

Georgia Farmers

Georgia Military facilities

Georgia Factories

Georgia Citizens

Answer:

The ordered pair (-3, 12) DOES NOT satisfy the equation.

Step-by-step explanation:

Given the function

[tex]y=-3x+2[/tex]

Let us substitute all the values to check which points satisfy the function.

FOR (1, -1)

y = -3x+2

substitute x = 1, y = -1

-1 = -3(1) + 2

-1 = -3+2

-1 = -1

TRUE!

Thus, the ordered pair (1, -1) satisfies the equation.

FOR (4, -10)

y = -3x+2

substitute x = 4, y = -10

-10 = -3(4) + 2

-10 = -12+2

-10 = -10

TRUE!

Thus, the ordered pair (4, -10) satisfies the equation.

FOR (-2, 8)

y = -3x+2

substitute x = -2, y = 8

8 = -3(-2) + 2

8 = 6 + 2

8 = 8

TRUE!

Thus, the ordered pair (-2, 8) satisfies the equation.

FOR (-3, 12)

y = -3x+2

substitute x = -3, y = 12

12 = -3(-3) + 2

12 = 9+2

12 = 11

L.H.S ≠ R.H.S

FALSE!

Thus, the ordered pair (-3, 12) DOES NOT satisfy the equation.

Therefore, the ordered pair (-3, 12) DOES NOT satisfy the equation.

Answer:

A.2 po

Step-by-step explanation:

himdi po ako sure sa answer ko

Answer: I think that if it is not 214 than you should just guess and see if that is the correct answer

Step-by-step explanation:

Answer:1,000,000

Step-by-step explanation:THERE U GO :)

Answer:

12 straight edges

Answer: 12

Step-by-step explanation:

Answer:

540 ft² ; 60 yd²

Step-by-step explanation:

1 square yard = 9 ft²

Dimension of room:

24ft 0in by 22ft 6in

1 in = 1/12 ft

6in = (1/12) * 6 ft = 0.5 feet

Hence, Dimension of room in feet ;

24ft by 22.5 ft ;

Square feet of ceiling tiles; (24 * 22.5)ft² = 540ft²

Square yards of carpet needed :

1 yd² = 9 ft²

Let yd² of carpet needed = x

1 yd² = 9 ft²

x yd² = 540 ft²

Cross multiply ;

9x = 540

x = 540 / 9

x = 60

Hence, 60yd² of carpet is needed

Answer:

additive

Step-by-step explanation:

X +9 = Y

Hope this helps!

Braniliest?