What you should do in this case is to use the following trinonometric relationship:
senx = C.O / h
Where
C.O: Opposite leg.
h: hypotenuse.
Substituting:
senx = (7) / (9)
Clearing x:
x = ASIN ((7) / (9))
x = 51.05755873
Answer:
The value of x is
x = 51 degrees.
The average would be the total amount divided by the 2 groups, so the answer would be 37.5 years old.
Answer:
Does the answer help you?
Well 112 out of 131, so 112/131=.85 so 85%, or about a B. Hope that helps :)