(C)
Step-by-step explanation:
The volume of the conical pile is given by

Taking the derivative of V with respect to time, we get


Since r is always equal to h, we can set

so that our expression for dV/dt becomes


Solving for dh/dt, we get



Answer:$271
Step-by-step explanation:
$125x12= 1500+250=1750
1750-1479=271
Answer:
Step-by-step explanation:
Pentagon
So, Pentagon has 72 degree rotational symmetry.
40/1 = 80/2 = 120/3 = 160/4 = 200/5 = 240/6 = 280/7 = 320/8 = 360/9 = 400/10 = 440/11 = 480/12 = 520/13 = 560/14 = 600/15 = 640/16 = 680/17 = 720/18 = 760/19 = 800/20
If that helps?