A relative frequency table is made from data in a frequency table. What is the value of k in the relative frequency table? Round the answer to the nearest percent O 2%
O 11%
O 20%
O 33%

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