Asquare rug coves 79 square feet of floor. what is the approximate length of one side of the rug to the nearest hundredth foot? the answers to choose from are 8.86ft, 8.87ft, 8.88ft, and 8.89ft.

Which sum or difference identity would you use to verify that cos (180° - q) = -cos q? a.) sin (a -b) = sin a cos b – cos a sin b b.) cos (a -b) = cos a cos b – sin a sin b c.) cos (a -b) = cos a cosb + sin a sin b d.) sin (a + b) = sin a cos b + cos a sin b