Answer:
8 π .
Step-by-step explanation:
radius increases at a constant rate of 1 in/sec.
dr / dt = 1
where r is radius .
radius after 4 sec
r = 1 x 4 = 4 in
area A = π r²
differentiating both sides
dA / dt = 2 π r dr / dt
Putting dr / dt = 1 , r = 4 in
dA / dt = 2 π x 4 x 1
= 8 π sq in per sec.
Area increases at the rate of 8 π per sec.
Answer:
or around 57.88
Step-by-step explanation:
We can find the base length by using the formula for the area of a triangle.
Plug in the values that we know, the area and the height, and solve for 
.
![b=\frac{984}{17}So the base is [tex]\frac{984}{17}](https://tex.z-dn.net/?f=b%3D%5Cfrac%7B984%7D%7B17%7D%3C%2Fp%3E%3Cp%3E%3C%2Fp%3E%3Cp%3ESo%20the%20base%20is%20%5Btex%5D%5Cfrac%7B984%7D%7B17%7D)
or about 57.88 if you round to the nearest hundredth.
Answer:
5 times 2
Step-by-step explanation:
5 times 2 because I know my multiplication. Even if I didn't know my ti.es table I can just look at it
