Solve the problem.Two angles are supplementary, and one is 40° more than three times the other. Find the smaller angle.
A. 75°
B. 105°
C. 35°
D. 145°
Answer: C
Mathematics
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Solve the problem.Two airplanes leave an airport at the same time, one going northwest (bearing 135°) at 414 mph and the other going east at 343 mph. How far apart are the planes after 4 hours (to the nearest mile)?
A. 2330 mi B. 2800 mi C. 2197 mi D. 700 mi
Mathematics
Solve the problem.Find the acute angle ? (in degrees) that satisfies the equation ? = sin-1 
.
A. 45° B. 120° C. 135° D. 60°
Mathematics
Match the graph with its equation.y = -2x - 3
A. 
B. 
C. 
D. 
Mathematics
Decide whether or not matrix A and matrix B are inverses.A = 
and B = 
A. Yes B. No
Mathematics