An aircraft flies from P(120N, 110W) to Q(120N, 110E) in 2 hours and then changes its course and arrivesat X(440N, 110E) in 6 hours after leaving Q. Calculate, correct to 3 significant figures, the:(a) total distance covered;(b) Average speed of the aircraft.[use = . = , ]

answer: evaluate the objective function at each vertex to determine which - and -values, if any, maximize or minimize the function. example: find the minimum value and maximum value of the objective function f ( x , y ) = 4 x + 5 y , subject to the following constraints

answer: b.

step-by-step explanation:

the y coordinate for point b is 0, and answer b is the only one with that y coordinate.

answer: the first graph

step-by-step explanation: