Determine the phase shift of the function.y = 5 cos 
A. 
units to the right
B. ? units to the left
C. 5? units to the right
D. 
units to the left
Answer: B
Mathematics
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Find the derivative of y with respect to x, t, or ?, as appropriate.y = 
A. 64xe8x - 18e6
B. e8x ( 8x - 1) - e6
(6
- 1)
C. ln t
D. 64e8x - 6
e6
Mathematics
Solve the problem.The water from a valve at the bottom of a water tank follows a path described by 
where units are in meters. If the velocity vx is constant at 
find the magnitude and direction of the velocity at the point (3.0, 2.1).
A. 5.8 m/s, 329° B. 5.0 m/s, 31° C. 5.0 m/s, 353° D. 5.8 m/s, 31°
Mathematics
Write the percent as a decimal.12.67%
A. 0.01267 B. 0.1267 C. 12.67 D. 1.267
Mathematics
Choose the graph which matches the function.f(x) = 2x + 2
A. 
B. 
C. 
D. 
Mathematics