Answer: 
Step-by-step explanation:
You need to draw a right triangle as the one attached, where 
is the angle of elevation from the fire to the top of the fire tower.
You need to use the Inverse trigonometric function Arctangent:
Observe the triangle. You can identify that:
Then, you can substitute values:
Finally, evaluating, you get that the angle of elevation from the fire to the top of the fire tower is the following:
Rounded to the the nearest tenth of a degree:
Answer:
25.13 in^2.
Step-by-step explanation:
I will assume a circular pizza with 8 pie shaped pieces.
Each of the 8 sectors is one piece of pizza. So find the area of the the circle, radius = 16/2 = 8, that is π * 8^2 and divide by 8 getting 8π for the area of each slice. Note: 8π ≈ 8 * 3.1416 ≈ 25.13 in^2.
Maybe I can help you it depends the problem.
Answer:
1/5 of 7 can also be written as
C. 7/5
