How many cups are in 3 quarts. The rate would be 4 cups per quart?

Select the lengths in centimeters that would form a right triangle

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?

What is the point of inflection for the function f(x)=2cos4x on the interval (0, pi/2)