The data below represents the scores in a golf tournament. if the mean is 70 with a standard deviation of 4.9, circle all values with a
z-score greater than 0.5

63, 64, 65, 67, 70, 71, 73, 73, 76, 78

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