Why would knowing the Pythagorean identity sin2x + cos2x = 1 and the sum identities allow you to prove all the other identities?

It takes 36 minutes for 7 people to paint 4 walls. How many minutes doesn't take 9 people to paint 7 walls?

Steve likes to entertain friends at parties with "wire tricks." Suppose he takes a piece of wire 72 inches long and cuts it into two pieces. Steve takes the first piece of wire and bends it into the shape of a perfect circle.

Does1/3 & 7/21 form a proportion

A migrating bird flies 420 miles in 14 hours how many miles does it fly in 5 hours

What is 38 and 5 tenths in decimal form

Find the lcm of the numbers, 2,4, and 11

Evaluate - (2^6) (2^3)

Find the sum of 2/3 + (-1/3)

An investigator wishes to estimate the proportion of students at a certain university who have violated the honor code. having obtained a random sample of n students, she realizes that asking each, "have you violated the honor code

Write an expression for the verbal phrase: the product of the square of x and seven