Mr kepner recorded for the last 7 years the number of students in his classes who owned cell phones the mean of his data is 15 and the median is 18 which of the following statements is true?

Answer:

15.21= 15.2 when rounded

Step-by-step explanation:

the formula for finding the area of a circle with the diameter is
A= 1/4 × π ×d^2

Answer:

15.21

Step-by-step explanation:

In order to find the area, you must find the radius first.

The diameter (4.4) divided by 2 = radius (2.2)

The area of a circle is pi times the radius squared ([tex]A = \pi r^{2}[/tex]).

In this situation, r, or radius =2.2.

[tex]A = \pi 2.2^{2}[/tex]

[tex]\pi[/tex][tex]2.2^{2}[/tex]= the area, 15.2053084434.

By rounding to the nearest hundredth, you get 15.21. The second number after the decimal is your hundredths place. If the number after the decimal is 4 or less, just remove all of the digits to the right. If it's five or more, like this case where it is 7, you add 1 to the hundredths place, then you remove all of the digits to the right.

Answer:

[tex]216^3[/tex]

Step-by-step explanation:

l*w*h

[tex]6*3*12=216^3[/tex]

Answer: 216

Step-by-step explanation: LxWxH = 12 x 3 = 36 x 6 = 216

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Answer:

400 tiles

Step-by-step explanation:

40 x 400/100 = 160

Answer:

D.

Step-by-step explanation:

Because since there are 4 people with an equal chance to win then you just put the number of people that you're trying to figure out over the total number.

Answer:

d

Step-by-step explanation:

we know there is 4 students so that means there's a 1/4 chance of him winning

Answer: not sure what country mathmatics it is but 12 divided by 4 = answer

Step-by-step explanation:

[tex]\qquad\qquad\huge\underline{{\sf Answer☂}}[/tex]

As we have been given ~

[tex]\qquad \sf  \dashrightarrow \: \pi {r}^{2}h [/tex]

[tex]\qquad \sf  \dashrightarrow \: 3 \times ({2}^{2}) \times 12 [/tex]

[tex]\qquad \sf  \dashrightarrow \: 3 \times 4 \times 12[/tex]

[tex]\qquad \sf  \dashrightarrow \: 144 \: \: f {t}^{2} [/tex]

[tex]\qquad \sf  \dashrightarrow \: l \times w \times h[/tex]

[tex]\qquad \sf  \dashrightarrow \: 10 \times 6 \times 6[/tex]

[tex]\qquad \sf  \dashrightarrow \: 3 60 \: \: ft {}^{2} [/tex]

[tex]\qquad \sf  \dashrightarrow \: 360 + 144[/tex]

[tex]\qquad \sf  \dashrightarrow \: 504 \: \: ft {}^{2} [/tex]

Answer:

2.25a-5

Step-by-step explanation:

rate brainiest please!

Answer:

I believe the answer is 115

Step-by-step explanation:

Because the angle on the other corner right next to it is 65. So subtract 65 from 180 and you get 115

Answer:

x=15

Step-by-step explanation:

Answer:

Step-by-step explanation:

400

Answer:

D

Step-by-step explanation:

i answered from plato

Answer:

264 hours

Step-by-step explanation:

there are 7 days in a week + 4 is 11

11 x 24 (HOURS IN A DAY) = 264 hours

hope this helps

Answer:

264 hours

Step-by-step explanation:

1 week = 7 days

1 day = 24 hours

Therefore, 7 · 24 = the number of hours in a week.

24 · 7 = 168

There are 168 hours in a week.

1 day = 24 hours

4 days = ? hours

4 · 24 = the number of hours in 4 days

24 · 4 = 96

There are 96 hours in 4 days.

You add 168 and 96 hours to get the total number of hours.

168 + 96 = 264

I hope this helps and please mark me as brainliest!

Answer:

12350%

Step-by-step explanation:

. 76 - 34 = 42

. 42 divided by 34 = 1.23529411765

. 1.23529411765 multiplied by 100 = 123.529411765

. 123.529411765 ≈ 123.5 * 100 = 12350%

Answer:

The different one is C, pi times the radius

Step-by-step explanation:

"Different" value is 18.85 and the "same" value is 37.70.

The distance around a circle, circumference and pi times the diameter all finds the same value, but pi time the radius is only half of those values

Answer:

6

Step-by-step explanation:

cross multiplying 24/4 = k/1

6 = k

k = 6

Answer:

Empirical probability is the probability observed in the chart above. The 8 was rolled 8 times out of 50 rolls. Theoretical probability is based upon what is expected when rolling two dice as seen in the sum table at the right. The experiment rolled more 8s than would be expected theoretically

Step-by-step explanation:

hope this helps if not let me now

Answer:

The experiment rolled more 8s than would be expected theoretically

Step-by-step explanation:

Answer:

the area of the triangle is half the area of parallelogram

Step-by-step explanation:

Answer:

133°

hope it helps!! :))

Answer:

y=2x

Step-by-step explanation:

We need to first find the slope. Lets get two points and apply the slope formula.

(1,2) and (2,4)

Rise: 2

Run: 4

Slope: 2

Then, lets use the standard way of showing a linear equation.

y=mx+b

y=2x+0

Answer:

-5.2

Step-by-step explanation:

-8+1.5 = -6.5

-6.5 * 4/5 = -6.5 * 0.8 = -5.2

Answer:b

Step-by-step explanation Explanation: Area of Parallelogram = Base X Height (A of P = b•h)A of P = 0.80cm X 0.45 cm=0.36cm2

Answer:

165° & 15°

Step-by-step explanation:

Let the first angle be 'a'

second angle be (a-150°)

a+(a-150°) = 180°

2a=180°+150°

2a=330°

a=330/2

a=165°

first angle is 165°

second angle is 165-150=15°

Answer:

81

Step-by-step explanation:

36 / 4 = 9

9*9 = 81

its a square

Answer:

81 sq cm

Step-by-step explanation:

36/4=9

9x9=81

81 sq cm

Answer:

96.6

Step-by-step explanation:

We know that the Area of the rectangle is,

A =Length x width

So the Area of the wall painted by Wendy will be,

A = 10.5 x 9.2 = 96.6

So; the area painted by Wendy will be 96.6 square feet.

-Mark me brainliest and a 5 star :D

Answer: y = -4x + 60

Step-by-step explanation:

we can use a simple linear equation to write this problem:

y = mx + b

The slope is given to be the number of bulbs in each pack, which is 4.

now we have: y = 4x +b

The value of b is the y intercept, or the starting value, 60. From this value, 4x can be subtracted to show our remaining bulbs in stock:

y = 60 - 4x

Writing this in the form y = mx+b gives us the equation:

y = -4x + 60

Answer:

y = 4x

Step-by-step explanation:

A corner store sells 60-watt bulbs in pack of 4.

x = number of packs

y = number of bulbs

y = 4x

Check your answer using the problem:

60 = 4x

/4     /4

12 = x

This means that there are 12 bulbs in each pack.

Hope this helps!

Answer:

Step-by-step explanation:

Remark

These two angles are supplementary. They make up the horizontal line. Supplementary angles add to 180 degrees.

Equation

x + 134 = 180

Solution and Answer

x + 134 = 180                    Subtract 134 from both sides

x + 134 - 134 = 180-134    Combine

Answer: x = 46

Answer:

373 in

Step-by-step explanation:

I hope this is right and it helps you!

Answer:

390m^2

Step-by-step explanation:

The Surface Area of a triangular prism is L(s1 + s2 + s3) + 2*base area

a = 5m

b = 12m

c = 13m

L = 11m

First, we need to find the base area...

base area = (a*b)/2

(5*12)/2 = 30 m^2

Next, find the surface area

A = 11(5 + 12 +13) + 2*30 = 390 m^2

PLEASE RATE!! I hope this helps!!

If you have any questions comment below

Answer:

21 people

Step-by-step explanation:

Lets define x as =). If x is 14, 1.5x will be 21.

Answer:

D Subtract 12 from the product of 5 and 3, then multiply by 8.

Step-by-step explanation:

Use the correct order of operations.

Do the operations in parentheses first.

In the parentheses, do the multiplication first, then the subtraction.

Finally, multiply by 8.

Answer:

D Subtract 12 from the product of 5 and 3, then multiply by 8.

Answer: the answer would be D) subtract 12 from the product of 5 and 3 , then multiply 8 .

Step-by-step explanation: hope this helped , good luck.