ANSWER
The required angle is

EXPLANATION
Let the angle whose sine is

be

Then

We take the inverse sign of both sides to obtain,

We use our scientific calculator to evaluate and obtain,
Answer:
$28.84
Step-by-step explanation:
That's for the first one that I found, the two other problems I don't know yet.
Answer:
A is the right answer
Step-by-step explanation:
Answer:
f=39
Step-by-step explanation:
hi! first, we can multiply by 12 on both sides to eliminate the 12 in the denominator.
f+3= (7/2)*12
f+3=84/2
f+3=42
now, subtract 3 on both sides.
f=39
1.
20= 2(x-4)
20/2= 2(x-4)/2
10= x-4
+4 . +4
14=x