Type the correct answer in each box. Use numerals instead of words. If necessary, use / for the fraction bar(s).

The measure of angle is 0 is 7 pi/4. The measure of its reference angle is___•

°, and tan 0 is

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?

Write an inequality for this description. - one fourth of the opposite of the difference of five and a number is less than twenty.

The graph of a quadratic function has a maximum at point (0, 5). the graph contains the point (2, 1). what is another point on the graph?