What number would you add to both sides of x2 + 7x = 4 to complete the square? 2^2
7^2
7^2/2
(7/2)^2

Choose the correct slope of the line that passes through the points (1, -3) and (3, -5)

On a string instrument, the length of a string varies inversely as the frequency of its vibrations. an 11-inch string has a frequency of 400 cylces per second. find the frequency of a 10-icnch string.

Find the greatest common factor of the followig monomials 21u^5v,3u^4v^6, and 3u^2v^5