an airplane that travels 450 mph in still air encounters a 50-mph headwind. how long will it take the plane to travel 1200 mi into the wind?

9987

step-by-step explanation:

the answer is 21%.

80° is the measure of gh

step-by-step explanation:

circle f is congruent to circle j

we have two circle with center f and j.

both circles are congruent. the radius of the circle would be equal.

see the attachment for the circle.

we are given ∠efd ≅ ∠gjh

therefore, arc (ed) = arc (gh)     (∴ circle f is congruent to circle j)

but ∠dfe=80°=arc (ed)

therefore, arc (gh) = 80°

thus, 80° is the measure of gh

the solution, from the graphing of the two lines, is (3,2), i.e., x = 3, y = 2.