A plane flying horizontally at an altitude of 1 mi and a speed of 550 mi/h passes directly over a radar station. Find the rate at which the distance from the plane to the station is increasing when it is 2 mi away from the station.
Select the correct answer.
a. ? 476 mi/h
b. ? 670 mi/h
c. ? 455 mi/h
d. ? 570 mi/h
e. ? 495 mi/h
a. ? 476 mi/h
Mathematics
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Solve the problem.9x = 100
A. 3.0959 B. 0.4771 C. 2.8459 D. 2.0959
Mathematics
Solve the problem.A recipe calls for 1 
cups of sugar for 20 brownies. How much of sugar is needed to make 8 brownies?
A. 
c
B. 9
c
C. 
c
D. 3 c
Mathematics
Solve using Cramer's rule, if possible. If it is not possible, state whether the system is inconsistent or has infinitely many solutions.
A. (6, 4, 1) B. (6, 1, 6) C. (5, 6, 1) D. (5, -6, -1)
Mathematics
Decide whether the ordered pair is a solution of the given system.(-5, 4)x + y = -1x - y = -9
A. No B. Yes
Mathematics