Solve the problem. make sure your answer is in simplest form and improper fractions are expressed as mixed numbers. =? a. 725 b. 34   c. 1225  d. 710 

a c

step-by-step explanation:

answer is because 4×10=40

and 98×4= is 392

40,392

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