Solve the equation.39 = 8x - 9
A. 40
B. 6
C. 13
D. 44
Answer: B
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Solve for the percentage in the problem. Round to the nearest tenth of a percent.$957 is % of $1745.
A. 182.3 B. 54.8 C. 0.1 D. 0.5
Which of the following is NOT one of the three main algebraic habits of mind identified by Driscoll (1999)?
a. Doing-undoing b. Solving equations c. Building rules to represent functions d. Abstracting from computation
Determine the row operation that was used on the first matrix to obtain the second matrix.
, 
What will be an ideal response?
An object attached to a coiled spring is pulled down a distance a from its rest position and then released. Assuming that the motion is simple harmonic with period T, write an equation that relates the displacement d of the object from its rest position after t seconds. Also assume that the positive direction of the motion is up.a = 5;
T = 3 seconds
A. d = -3 cos 
B. d = -5 sin 
C. d = -5 cos 
D. d = -5 cos 