Answer:
a x = 14.9
b x = 15.4
c x = 30.8
Explanation:
a. sin = opposite / hypotenuse
sin 48 = x/20
multiply by 20
20 sin 48 = x
14.86 = x
to the nearest tenth
14.9
b cos = adjacent/ hypotenuse
cos 39 = 12/x
multiply by x
x cos 39 = 12
divide by cos 39
x = 12/ cos 39
x = 15.44
rounding to the nearest tenth
x = 15.4
c tan = opposite/adjacent
tan 64 = x/15
multiply by 15
15 tan 64 =x
30.75 =x
rounding to the nearest tenth
30.8 =x