Question

# please only answer if you can do all parts, I also included my answer but they...

please only answer if you can do all parts, I also included my answer but they are wrong please do not leave the same one

part 4)

A spherical balloon is inflated so that its volume is increasing at the rate of 3.8 ft3/minft3/min. How rapidly is the diameter of the balloon increasing when the diameter is 1.8 feet? The diameter is increasing at 1.8 (My answer but its incorrect) ft/min.

part 5)

A street light is at the top of a 18 ft tall pole. A woman 6 ft tall walks away from the pole with a speed of 6 ft/sec along a straight path. How fast is the tip of her shadow moving along the ground when she is 40 ft from the base of the pole? ft/sec How fast is the length of her shadow increasing? ft/sec part

6)

Suppose that for a company manufacturing calculators, the cost, and revenue equations are given by C=70000+40x,R=400−x^2/30 where the production output in one week is x calculators. If the production rate is increasing at a rate of 500 calculators per week when the production output is 6000 calculators, find each of the following: Rate of change in cost = Rate of change in revenue = Rate of change in profit =

#### Earn Coins

Coins can be redeemed for fabulous gifts.