solve the problem. use 3.14 for pie, and round your answer to the nearest tenth.
the foundation for a cylindrical flower bed is a cylinder 17 feet in diameter and 5 feet high. how much concrete is needed to pour the foundation?
a. 533.8 cu. ft
b. 2268.7 cu. ft
c. 1134.3 cu. ft
d. 4537.3 cu. ft

Question

solve the problem. use 3.14 for pie, and round your answer to the nearest tenth.
the foundation for a cylindrical flower bed is a cylinder 17 feet in diameter and 5 feet high. how much concrete is needed to pour the foundation?
a. 533.8 cu. ft
b. 2268.7 cu. ft
c. 1134.3 cu. ft
d. 4537.3 cu. ft

anonymous · Answer

someone plllzzzz help!!! WILL GIVE MEDAL!!!!

jim_thompson5910 · Answer

Volume of Cylinder

V = pi*r^2*h

In this case, 

pi = 3.14 approximately
r = 8.5 (divide the diameter 17 in half)
h = 5

anonymous · Answer

so do i just multiply those 3 numbers??

jim_thompson5910 · Answer

yes and the notation "r^2" means you square the radius

example: 5^2 = 5*5 = 25

anonymous · Answer

do i square it first before multiplying it all??

jim_thompson5910 · Answer

yes exponents come before multiplication

PEMDAS

P = parenthesis
E = exponents
M = multiplication
D = division
A = addition
S = subtraction

anonymous · Answer

its 1134 so c right??!! thats what i got

jim_thompson5910 · Answer

you should get 1,134.325

jim_thompson5910 · Answer

1,134.325 rounded to the nearest tenth is 1,134.3

jim_thompson5910 · Answer

looks good

anonymous · Answer

yea i know but i rounded

anonymous · Answer

ty!!

jim_thompson5910 · Answer

np