Question

math

Answer 1

so once again

volume = 1/3 * pi * r^2 * h

but this time, they've told us the DIAMETER instead of the radius

so if the diameter is 10, what is the radius?

Answer 2

5

Answer 3

could you walk me through this one az?

Answer 4

AZ?

Answer 5

good so 5 is the radius

and they told us the volume is 225

so

volume = 1/3 * pi * r^2 * h

now just put those numbers into the formula

225 = 1/3 * pi * (5^2) * h

can you solve for h?

Answer 6

8.6?

Answer 7

hmm not quite

what is 5^2 = ?

and then divide that on both sides

and then divide \(\pi\) on both sides

and then multiply by 3 on both sides

and that way you'll have 'h' all by itself

Answer 8

5^2=25

Answer 9

okay so now we have

225 = 1/3 * pi * 25 * h

so maybe it would just be easier if we reduce the steps hahah

what is 1/3 * pi * 25 = ?

Answer 10

235.6

Answer 11

lol

Answer 12

can you re-do that

I had accidentally made a typo and wrote 3 instead of 1/3

Answer 13

lol sure

Answer 14

26.2

Answer 15

good, and let's keep some more digits for now until we get to the final answer

so we have

225 = 26.18 * h

and now, do you know how to solve for h?

we want to get it all by itself and since we're multiplying it with 26.18
then to get rid of that, we need to do the opposite of multiplication so we have to divide by 26.18 on both sides

Answer 16

8.4

Answer 17

hmm I think there's some rounding error

what is 225/ 26.18 = ?

Answer 18

8.6

Answer 19

There you go! That's your final answer :)

Answer 20

lol

Answer 21

thx

Answer 22

you're welcome