Combine like terms.7m2 + 12m - 13m2 + 13m
A. -6m2 + 25m
B. -6m2 - 25m
C. 6m2 - 25m
D. 6m2 + 25m
Answer: A
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Simplify the rational expression. If the expression is already in simplest form, state this as your answer.
A. (x - 4) B. -(x - 4) C. (x + 4) D. -(x + 4)
Factor, if possible; if the polynomial is not factorable, write "prime."45 - 14x + x2
A. (x + 9)(x - 5) B. (x - 9)(x + 5) C. (x + 9)(x + 5) D. (x - 9)(x - 5)
Solve the problem.Given the velocity and initial position of a body moving along a coordinate line at time t, find the body's position at time t.v = cos 
t, s(0) = 1
A. s = 2? sin 
t
B. s = sin t +1
C. s = 
sin 
t + ?
D. s = 
sin 
t +1
Solve the problem.It took three assembly-line workers 4.02 seconds, 5.522 seconds, and 4.4 seconds to assemble a product. How many seconds in all did they work?
A. 9.542 sec B. 5.902 sec C. 8.42 sec D. 13.942 sec