It would be helpful if you draw a figure of the problem statement so that you would understand it clearly. You would see that a right triangle would be formed where the base is equal to the horizontal distance from the airplane to the atoll which is 5172 and the angle from the ground to the atoll would be equal to the angle of depression. We calculate as follows:
tan (theta) = opposite/ adjacent
tan (10) = height / 5172
height = 911.96 units of length
The function for this would be
f(x)= 70x + 5
Plug the 4 and half hours (4.5) into the function
f(x) = (70 x 4.5) + 5
You then get 315 from multiplying 70 and 4.5. Then add the additional 5 from gasoline.
You end up with 320$ for working 4 and a half hours
Answer:
$90
Step-by-step explanation:
9 times 10 is 90