Question

help math

Answer 1

number one leave your answer in terms of pi

Answer 2

Im new help

Answer 3

@AZ

Answer 4

\(\text{surface area of sphere} = 4 \pi r^2\)

\(\text{volume of sphere} = \dfrac{4}{3} \pi r^3\)


just plug in whatever r (or radius) value they gave you and solve

Answer 5

r=3

Answer 6

yes, for #1 r = 3

can you put that into the equation and solve?

what is 4 * pi * (3)^2

that's your surface area

Answer 7

12.56 * (3)^2

Answer 8

why did you multiply the pi?

the question says to leave your answer in terms of pi

do you know what 3^2 means?

3^2 just means 3 squared which means 3 * 3

if we had 3^3 that means 3 to the power of 3
which means we multiply 3 by itself 3 times
so 3 * 3 * 3

Answer 9

so what is

3 * 3 * 4

we don't want to multiply the pi, we just want to leave it as pi

Answer 10

12

Answer 11

\(\color{#0cbb34}{\text{Originally Posted by}}\) @new2luv
12
\(\color{#0cbb34}{\text{End of Quote}}\)

are you sure?

3 times 3 times 4 equals what?

Answer 12

yeah

Answer 13

no

what is 3 times 4

Answer 14

12

Answer 15

so what is

3 times 3 times 4

if 3 * 4 = 12

then what is

3 * 3 * 4 = ??????????????????

Answer 16

36

Answer 17

there you go

Answer 18

\(\color{#0cbb34}{\text{Originally Posted by}}\) @AZ
yes, for #1 r = 3

can you put that into the equation and solve?

what is 4 * pi * (3)^2

that's your surface area
\(\color{#0cbb34}{\text{End of Quote}}\)

so for surface area we had

4 * pi * 3^2

and you just said that 4 * 3 * 3 = 36

so that means the surface area is

SA = 4 * pi * 3^2

SA = 36 * pi

Answer 19

so your answer in terms of pi would be \( 36\pi\) for surface area when radius = 3

does that make sense?

Answer 20

yes

Answer 21

now let's calculate the volume when the radius = 3

volume = 4/3 * pi * (3)^3

what is 3^3 =

remember 3^3 is just 3 * 3 * 3