The population of a city grows from an initial size of 400,000 to a size P given by P(t) = 400.000 + 5000t^2. where t is in years.

a) Find the growth rate. dP/dt.
b) Find the population after 10 yr.
c) Find the growth rate at t = 10.

You are updating your garage and the only thing left to paint is your garage day. you're only going to paint the slide that faces the street. the garage door is 9 fert 8inches tall and 120 inches wide. you need to know the surface area of the side of the garage door to determine how much paint to buy. the hardware store sells paint by how much covers a square foot. what is the surface area you should report to the hardware store what is the answer

Express -5 2/5 as an improper fraction.

A50-foot ladder is leaning against a vertical wall. if the base of the ladder is 45 feet from the base of the wall, find the angle the bottling of the ladder makes with the ground.