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lara [203]
3 years ago
8

The data set shows the numbers of hours students study the week before a test. Find and interpret the mean absolute deviation of

the data. Write your answer as a decimal. 3, 4, 5, 6, 6, 7, 8, 8, 9, 9 The data values differ from the mean by an average of hours.
Mathematics
1 answer:
patriot [66]3 years ago
4 0

Step-by-step explanation:

3 + 4 + 5 + 6 + 6 + 7 + 8 + 8 + 9 + 9 / total of numbers or 10 = 65 ÷ 10 = 6.5 This is the mean.

3 - 6.5 = 3.5

4 - 6.5 = 2.5

5 - 6.5 = 1.5

6 - 6.5 = 0.5

6 - 6.5 = 0.5

7 - 6.5 = 0.5

8 - 0.5 = 7.5

8 - 0.5 = 7.5

9 - 0.5 = 8.5

9 - 0.5 = 8.5

MAD = 1.7

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Step-by-step explanation:

because the are la of the square is equal all sides of area

5 0
3 years ago
Please!!!!! I need this answer in 1 minute PLEASE!!!!!
Mnenie [13.5K]

Answer:

A) The equation for circumference is C=2piR. So Filling in for circle A we have 28.26=2*pi*4.5 so we want to isolate pi which I'm gonna call x for it's easier for me xD. So we're gonna start by dividing 4.5 from each side which is gonna leave us with 6.28=2*x which gives you x(pi)= 3.14. For circle B we have 15.70=2*x*2.5 isolate x by first dividing 2.5 which leaves us again with 6.28=2x and x= 3.14.

B) The equation for area is A=piR^2. So again for circle A we have 63.585=x9^2. This one is harder but also are you sure that the area is 63.585 it's supposed to be 254.469 (We'll come back to this)

C) The observation you can make about the value of pi for circles A and B is that it stays consistent at 3.14

hoped i helped :  )

3 0
3 years ago
Can someone explain to me how to solve inequalities with variables on both sides
Stolb23 [73]
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3 and 3/8 tons equals how many pounds
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8 0
3 years ago
An equation is shown below: 6(2x-11)+15=21
mars1129 [50]

Hello!

To solve, we want to isolate the x on one side of the equation. We can use inverse operations to put numbers on the other side to find x.

First we undistribute our parentheses.

12x-66+15=21

We subtract 15 from both sides (it cancels out the 15 on the left side, making it 0).

12x-66=6

Now we add 66 to both sides, as -66+66=0

12x=72

Finally, we divide both sides by 12.

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I hope this helps!

8 0
3 years ago
Read 2 more answers
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