Answer:
-605
Step-by-step explanation:
You haven't shared all of the question, so I'll guess that you want to find "how fast is the area of the sphere increasing?"
Area of a sphere = 4*pi*r^2
Rate of change of area of a sphere with respect to radius r:
dA/dr = 8*pi*r*(dr/dt)
Here, that would come out to
dA/dr = 8*pi*r*(2 inches / sec)
If you meant, "how fast is the volume of the sphere increasing?" you'd need to use a different equation:
V = (4/3)*pi)*r^3
and go through a similar process.
Answer:
39/63
Step-by-step explanation:
18 21 39/63
63 63
Answer:
Step-by-step explanation:
2/3x-36 > 22
Multiple each term by 3
3(2/3x-36) > 3(22)
2x - 108 > 66
Collecting like terms
2x > 66 + 108
2x > 174
x > 174/2
x > 87
Answer:
true
Step-by-step explanation:
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