Awheelchair ramp is to be built beside the steps to the campus library. find the angle of elevation of the 20-foot ramp, to the nearest tenth of a degree, if its final height is 5 feet.

14.5°

Step-by-step explanation:

length of ramp, l = 20 foot

height of ramp, h = 5 foot

Let θ is the angle of inclination

Sin θ = h/l

Sin θ = 5 / 20

Sin θ = 0.25

θ = 14.5°

Thus, the inclination of ramp is 14.5°.

5x+40

5(x + 8)

7x - 49

7(x - 7)

18x + 9

9(2x + 1)

15x - 10

5(3x - 2)

step-by-step explanation:

for number one all you have to do is factor 5 out of 5x + 40

for number 2 factor 7 out of 7x - 49

for number three factor 9 out of 18x + 9

for number four factor 5 out of 15x - 10

here is the

mark brainliest pl