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4 years ago

{20, 30, 40, 50, 60, 70, 80} The mean of this set of numbers is A) 20 B) 50 C) 55 D) 60

Mathematics

2 answers:

Veseljchak [2.6K]4 years ago

8 0

Answer:

Your answer would be: B) 50

To find the mean, you add all the numbers in the data set and divide them by how many numbers there are, which in this case it is 7.

shusha [124]4 years ago

4 0

Answer:

Step-by-step explanation:

Adding up 20, 30, 40, 50, 60, 70, 80, we get 350. There are 7 numbers in this set, so divide this 350 by 7. We obtain the mean, 350/7 = 50 (Answer B)

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A cylinder is placed within a cube. The diameter of the cylinder is equal to the length of each side of the cube. What is the vo

pochemuha

The volume of a shape is the amount of space in it.

<em>The volume outside the cylinder, but inside the cube is 214.6 cubic inches</em>

The given parameter is:

$l = 10$ ---- length of the cube

So, the volume of the cube is:

$V_1 = l^3$

$V_1 = 10^3$

$V_1 = 1000$

The volume of the cylinder is:

$V_2 = \pi r^2h$

The diameter (d) of the cylinder equals the length of the cube.

This means that:

$d = l$

$d = 10$

Divide by 2 to calculate the radius of the cylinder

$r = \frac{10}{2}$

$r = 5$

Also, the height of the cube is::

$h =l$

$h =10$

So, we have:

$V_2 = \pi r^2h$

$V_2 = \pi \times 5^2 \times 10$

$V_2 = \pi \times 25 \times 10$

$V_2 = \pi \times 250$

$V_2 = 785.4$

So, the volume (V) outside the cylinder is:

$V = V_1 - V_2$

$V = 1000 - 785.4$

$V = 214.6$

Hence, the volume outside the cylinder is 214.6 cubic inches

Read more about volumes at:

brainly.com/question/15861918

5 0

3 years ago

Solve for x by finding the missing side of the triangle. Round your answer to the nearest tenth

Alika [10]

Answer:

i thought i had the answer but then i got it wrong im sorry

Step-by-step explanation:

5 0

3 years ago

Read 2 more answers

Please math help and please show work!

Galina-37 [17]

Since they are similar triangles, they are just enlarged versions of each other. This means that the left-most angle of triangle XYZ is also 35°.

Angles in a triangle add up to 180°, so we can find the missing angle by subtracting the two known angles from 180.

180 - 70 - 35 = 75
The right-most angle of triangle XYZ would be 75°.

Hope this helps!

6 0

3 years ago

Help me please! will mark brainliest if ur correct!

Zina [86]

Answer:

i think it's c

Step-by-step explanation:

ok so i think i get it, volume is width*length*depth so dividing the known volume by its width gives you the length*depth.

after that set up a porportion:

(L*W)of known/92 = x/46

solve for x gives you the length*depth of the unknown volume, times that but the 46 width.. i got 60

i think that's right but im not a teacher or anything

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3 years ago

Can I rotate, translate, or reflect a figure if one figure is larger than the other figure?

lisov135 [29]

Answer:

translate

Step-by-step explanation:

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3 years ago