Answer:
r=20
Step-by-step explanation:
since the angle and sum of a straight line is equal to 180, you structure an equation:
180=105+(4r-5)
solve for r
180=100+4r
80=4r
20=r
check answer
4r-5 4(20)-5
80-5
75+105=180
THE ANSWER TO YOUR QUESTION IS 257 INCHES IN TOTAL.
BECAUSE, 21 FEET = 252 INCHES + 5 INCHES = 257
Alrighty.
First we need to make them all simplified.
So simplified would be

times

times

.
Then we multiply the numerator and the denominator. The final answer is

Simplified is
The hypotenuse is 15
The opposite is 12
The adjacent is 9
Answer: The answer is -2 it's just going to stay as -2 because y has no value.