What is the value of the function f(x) = 3(4 − x) when x = 7? 33 9 –9 –21

there are no short passages to look at

pls refer ro the top for answer

yx = 36

step-by-step explanation:

cos f = opposite side/ hypotenuse

cos f = yw / yx

we know cos f = 4/9 and yw =16

4/9 = 16/yx

multiply each side by yx

4/9 yx = 16/ yx * yx

4/9 yx = 16

multiply each side by 9/4

9/4 * 4/9 yx = 16 *9/4

yx = 36

~dasgupta/mathbook/append17dec2k8.pdf