Question

HALP! :)

Answer 1

http://prntscr.com/e378nl

Answer 2

k. i would help if i had any clue how to solve that. srry

Answer 3

i forgot how to use Pi correctly. use brainly i guess

Answer 4

and that is blocked on my school computer

Answer 5

welp

Answer 6

hold on

Answer 7

A ball has a radius of 1 foot.
What is the surface area of the ball?

Answer 8

Sooo the diameter is 2 feet.

Answer 9

12.56637 is the exact number

Answer 10

4pi x r^2

Answer 11

You think you can just throw in a direct answer ?

Answer 12

that is not exact!

Answer 13

A=4πr2=4·π·1^2≈12.56637

Answer 14

4pi x r^2

4(3.14) x 1^2

surface = ?

Answer 15

Yuko, look at my steps. ._.

Answer 16

The answers are in pi form....

Answer 17

huh...?

Answer 18

yes, that is what exact means

Answer 19

So 12.57

Answer 20

12.56 actually

Answer 21

so i was right then

Answer 22

So it would be 4*3.14=12.56

Answer 23

So what would your answer be ? @iYuko

Answer 24

Yep, that's it!

Answer 25

So its B right

Answer 26

Yep

Answer 27

whoop!

Answer 28

exact means exact, not a decimal approximation

Answer 29

\[4\pi\] is exact
12.whatever is not

Answer 30

hehe

Answer 31

Okay.. I got it. I was able to do the rest. :)