Solve the system of equations.x - 4y + z = 174x - y - z = 23
A. 
B. 
C. 
D. 
Answer: D
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Express the radical in simplest form, rationalize denominators, and perform the indicated operations.8
+ 2x
A. 66x
B. 66
C. (8
+ 10
)x
D. 10x
Solve the problem.The graph of a trigonometric function f represented by f(t) = a sin (b(x - c)) is shown, where a, b, and c are nonnegative. State the phase shift.
A. 8? B. 3? C. 5? D. 5
Find the gross earnings. Use the overtime premium method. Overtime is paid at time-and-a-half for all hours over 40.
A. $738.75 B. $538.75 C. $536.75 D. $492.50
Solve. Round your answer to the nearest tenth, if necessary.An object is thrown upward from the top of a 
building with an initial velocity of 48 feet per second. The height, h, of the object after t seconds is given by the quadratic equation 
When will the object hit the ground?
A. In 5 seconds B. In 160 seconds C. In 2 seconds D. In 7 seconds