Answer:
Step-by-step explanation:
Remark
Formula
sin(theta) = side opposite / hypotenuse
Givens
Theta = 66 degrees
Hypotenuse = x
Side Opposite = 15
Solution
and means + or addition
so 10x+7+x
11x+7
Show the whole photo and you will maybe get help
7
12.94
By the law of sines:
x / sin(35) = 7.9 / sin70
x = 7.9 * sin(70)/sin(35)
= 7.9 * 0.9397 / 0.5736
= 12.94