(3x3 + 2x2 – 2x – 1) = (3x – x-1)

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.

A. 90 degrees b. 45 degrees c. 30 degrees d. 120 degrees

Divide. write in simplest form 41/6 divided by 10