Flying against the wind, an airplane travels 3760 kilometers in 4 hours. Flying with the wind, the same plane travels 4320 kilometers in 3 hours. What is the rate of the plane in still air and what is the rate of the wind?

1 hour each 30 minutes so the answer is 30 minutes

2x^2+5x+17

your welcome. : )

answer:   28.56 feet (approx)

step-by-step explanation:

since, triangle abc has measure of angle c equal to 55 degrees, measure of angle abc equal to 90 degrees, and length of bc equal to 20 feet.

we have to find out the measurement of segment ab.

therefore, tan 55° =

but bc = 20 feet.

⇒ tan 55 ° =  

⇒ ab = 20 × tan 55 °

⇒ ab = 20 × 1.42814800674

⇒ ab = 28.5629601348   ≈ 28.56 feet