The height of the water in an above ground pool is 3 feet. The pool needs to be drained. As the water drains, the height of the water changes at a rate of -1/2 inch per minute. How many minutes will it take to drain the pool?

What is the measure of angle z in this figure? enter your answer in the box. z = ° two intersection lines. all four angles formed by the intersecting lines are labeled. clockwise, the angles are labeled 43 degrees, x degrees, y degrees, and z degrees.

You are standing next to a really big circular lake. you want to measure the diameter of the lake, but you don't want to have to swim across with a measuring tape! you decide to walk around the perimeter of the lake and measure its circumference, and find that it's 400\pi\text{ m}400? m. what is the diameter dd of the lake?

Factor the polynomial. b^2 + 4b + 4