Use even and odd properties of the trigonometric functions to find the exact value of the expression.sin (-120°)
A. 
B. - 
C. - 
D. 
Answer: C
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A garbage truck must pick up garbage at 4 different dump sites (A, B, C, and D) as shown in the graph below, starting and ending at A. The numbers on the edges represent distances (in miles) between locations. The truck driver wants to minimize the total length of the trip.
The repetitive nearest-neighbor tour starting with vertex A is given by:
A. A, C, B, D, A. B. A, B, D, C, A. C. A, B, C, D, A. D. A, D, C, B, A. E. none of these
Solve the system by using the inverse of the coefficient matrix. 5x + 4y = 84x - 2y = 22
A. {(4, -3)} B. {(3, -4)} C. {(-4, 3)} D. {(-3, 4)}
Solve the problem.Let f(x) compute the time in hours to travel x miles at 
per hour. What does 
compute?
A. The hours taken to travel x miles B. The miles traveled in 59 hours C. The hours taken to travel 59 miles D. The miles traveled in x hours
Graph the hyperbola and label all intercepts.9x2 - 4y2 = 36
A. 
(-3, 0), (3, 0)
B. 
(-2, 0), (2, 0)
C. 
(0, 2), (0, -2)
D. 
(0, 3), (0, -3)