Simplify. Assume all variables represent nonnegative values.
A. 
B. 4x
C. x 
D. 
Answer: A
Mathematics
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The problem tells how many units and in what direction the graph of the given equation is to be shifted. Give an equation for the shifted graph. Then sketch the original graph with a dashed line and the shifted graph with a solid line.y = x3
Down 3, left 5
A. y - 3 = (x + 5)3
B. y - 3 = (x - 5)3
C. y + 3 = (x + 5)3
D. y + 3 = (x - 5)3
Mathematics
Solve the problem.The voltage E in an electrical circuit is given by E = 2.6 cos 160?t, where t is time measured in seconds. Find the period.
A. 
B. 80
C. 80?
D. 
Mathematics
Combine like terms whenever possible. Write the result with descending powers.-0.2y +0 .9y2
A. -7y3 B. 0.9y2 -0 .2y C. 2y2 - 9y D. -0.2y +0 .9y2
Mathematics
Evaluate.
+ (- 
)
A. - 
B. 
C. 
D. - 
Mathematics