Answer:
The angle of elevation of the ramp is 64.60°
Step-by-step explanation:
Given;
length of the ramp, L = 35 ft
distance of the platform to the foot of the ramp, d = 15 ft
The length of the ramp forms the hypotenuse side of this right angled triangle;
The angle of elevation of the ramp is in angle between the hypotenuse and adjacent side of the triangle.
Cos x = adjacent / hypotenuse
Cos x = 15 / 35
Cos x = 0.4286
x = Cos⁻¹ (0.4286)
x = 64.62
x = 64.60°
Therefore, the angle of elevation of the ramp is 64.60°
Theres an infinite amount of numbers because you could have 0.10123 to 0.19998298 its never ending
As from the question,
x = 60°
πd = 12π
Using the Arc Length formula,
x/360° × πd
= 60°/360° × 12π
= 2π
Ans: B
Erica: 4.2 in 3
Michelle: 33.5 in 3
Then we subtract:
33.5 - 4.2 = Answer: (29.3 in 3)
-Note: If you need anymore further explanation, be happy to comment below!
Best of Luck to you!
Answer:
C should be the correct answer
