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3 years ago

The histogram below shows information about the hours students spent exercising in a week:

Mathematics

1 answer:

DENIUS [597]3 years ago

5 0

The median I think is 5 or 9 I think because if you take the middle numbers and subtract them the answer would be 5 if your just looking at the middle number which would be 9 because is in the middle I hope that helped see you next time -sincerely sarah

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Question is on the picture !

Nataly [62]

Answer: 122.5

======================================================

Explanation:

First thing to do is to find the perimeter of figure B. Add up all the sides and we get: 5+9+9+12 = 14+21 = 35.

The scale factor 7:2 means that if the perimeter of figure A was 7, then the perimeter of figure B would be 2. Or it could be 14 for A and 4 for B. And so on. The idea is that the two perimeters scale up or down together. This allows us to set up the proportion below in which we can solve for x

(perimeter of A)/(perimeter of B) = 7/2

x/35 = 7/2

x*2 = 35*7 .... cross multiply

2x = 245

2x/2 = 245/2 .... divide both sides by 2

x = 122.5

The perimeter of figure A is 122.5

4 0

2 years ago

I NEED HELP ASAP

aalyn [17]

AnsS

Step-by-step explanation:

Is The C

4 0

3 years ago

Read 2 more answers

A sphere has a radius of 11 feet. A second sphere has a radius of 8 feet. what is the difference of the volume of thespheres

Veronika [31]

The difference between the volume of the spheres is 3428.88 cubic feet

Explanation:

Given that one sphere has a radius of 11 feet.

A second sphere has a radius of 8 feet.

Volume of the 1st sphere:

The formula to determine the volume of the sphere is given by

$V=\frac{4}{3} \pi r^3$

Volume of the 1st sphere is given by

$V=\frac{4}{3}(3.14)(11)^3$

$V=\frac{4}{3}(3.14)(1331)$

$V=\frac{16717.36}{3}$

$V=5572.45$

The volume of the 1st sphere is 5572.45 cubic feet.

Volume of the 2nd sphere:

Volume of the 2nd sphere is given by

$V=\frac{4}{3}(3.14)(8)^3$

$V=\frac{4}{3}(3.14)(512)$

$V=\frac{6430.72}{3}$

$V=2143.57$

The volume of the 2nd sphere is 2143.57 cubic feet.

Difference between the volume of the two spheres:

Difference = Volume of the 1st sphere - Volume of the 2nd sphere

= 5572.45 - 2143.57

Difference = 3428.88 cubic feet.

Hence, the difference between the volume of the spheres is 3428.88 cubic feet.

7 0

3 years ago

Josh practices free throws during basketball practice on Monday and Tuesday. On Monday, he attempts 15 free throws and 6 basketb

ValentinkaMS [17]

Answer:

he has to make 12 shots

Step-by-step explanation:

8 0

3 years ago

Help please! how do you find the absolute deviation of a data set?

Xelga [282]

You find the mean absolute deviation by first finding the mean, and then subtracting all the values in the data set from that, creating a new data set, and then you find the mean of this new data set.

Example:

3, 2, 5, 9, 4

Mean(add them all, divide by how many there are): (3 + 2 + 5 + 9 + 4)/5 = 4.6

Subtract 4.6 from/to all the values:

4.6 - 3 = 1.6
4.6 - 2 = 2.6
5 - 4.6 = 0.4
9 - 4.6 = 4.4
4.6 - 4 = 0.6

Find the mean of these values:

(1.6 + 2.6 + 0.4 + 4.4 + 0.6)/5 = 1.92

So the mean absolute deviation is 1.92.

3 0

3 years ago