Answer:
Step-by-step explanatio
1mile = 5280 feet
607,200 / 5280 = 115
607,200 feet per hour = 115 miles per hourn
Answer:
5th option
Step-by-step explanation:
The secant- tangent angle DCB is half the difference of the intercepted arcs, that is
∠ 1 =
( AD - BD)
Subtract 39. That is my answer. I hoped I helped!
For this case we must find the value of "x" that meets the following equation:

We subtract
on both sides of the equation:

We simplify:

Finally, 
Answer:
