Answer:
i belive it is the first one.
Step-by-step explanation:
The volume equation for a cylinder is V=(pi)(di^2)(h)/4, so in this problem it is V=pi(8^2)(10)/4 --> V=pi(64)(10)/4 --> V=pi(640)/4 --> V=160pi or 502.65
Answer:
1/10
Step-by-step explanation:
Answer:
x = 20
Step-by-step explanation:
5x + 9 + 3x + 11 = 180
Combine like terms
8x + 20 = 180
Subtract 20 from both sides
8x = 160
Divide both sides by 8
x = 20
X-2y=-12
x+6y=20
we can cancel x's
multiply first equation by -1 and add to 2nd equation
-x+2y=12
<u>x+6y=20 +</u>
0x+8y=32
8y=32
divide both sides by 8
y=4
sub back
x-2y=-12
x-2(4)=-12
x-8=-12
add 12 both sides
x=-4
(x,y)
(-4,4)