Please help me if you can
The climb angle (angle of elevation) of an airplane taking off is 20°. If the airplane maintains that angle until it reaches cruising altitude, what is the approximate horizontal ground distance from that airplane to the point of takeoff when the airplane has reached its cruising altitude of 30,000 feet? (Remember that 1 mile = 5,280 feet.)
A) 82
B)16.61
C)6.05
D)0.07
E)15.61

the answer is d

step-by-step explanation:

since your problem is x^4 = 81, what you have to undeo is the "to the fourth power" part.

the inverse (opposite operation) of "to the fourth power" is "to the fourth root".

  (x^4) ^ ¼   = 81 ^ ¼  

  81 = 3^4     so (3 ^ 4) ^ ¼   =   3 ^ 1   = 3

by hand: (3 ^ 4) ^ ¼   =   3 ^ (4 x ¼) = 3 ^ 1   = 3   (when you take a power to a power, multiply the exponents.)

or, do it by calculator. one way of finding the fourth root is to use ^ (1/4)

step-by-step explanation:

a

step-by-step explanation:

the answer is a