Respuesta :

Answer:

11.1 =x

Step-by-step explanation:

Since we have a right triangle, we can use trig functions

cos theta = adjacent side/ hypotenuse

cos 42 = x/15

Multiply each side by 15

15 cos 42 = x

11.14717238 =x

Rounding to the nearest tenth

11.1 =x

Answer:

11.1

Step-by-step explanation:

cos42 = adjacent/hypotenuse

cos42 = x/15

x = 15cos42

x = 11.1471723822