Answer:
FD ≈ 252.8 feet
Step-by-step explanation:
By applying tangent rule in the given right triangle,
tan(20°) =
tan(20°) =
0.36397 =
FD =
FD = 252.77
FD ≈ 252.8 feet
Answer:
C) 
Step-by-step explanation:

Therefore, C is correct. Recall that 
Answer:
i dont know maybe you should search google. best of Luck
Step-by-step explanation:

which means the parabola lies above the x-axis over its entire domain. This means the area is given by