Every bottle of Supercharge vitamins contains 50 vitamins let v be the total number of vitamins and let b be the number of bottles

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

Find the average rate of change for the given function drom x=1 to x=2

In a rectangle klmn, km = 6x + 16 and ln = 49. find the value of x