Simplify the expression.
A. x + 6
B. 
C. x - 3
D. 
Answer: A
Mathematics
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Factor the sum or difference of two cubes.27 - t3
A. (3 + t)(9 - 3t + t2) B. (3 - t)(9 + 3t + t2) C. (3 - t)(9 + t2) D. (3 + t)(9 - t2)
Mathematics
Assuming that the equations define x and y implicitly as differentiable functions 
find the slope of the curve 
at the given value of t.2x + 4x3/2 = t3 + t, y(t + 1) - 4t
= 25, t = 0
A. 10
B. -10
C. - 
D. -5
Mathematics
Write the following fraction as a terminating decimal or, if a repeating decimal, rounded to the thousandths place.
A. 0.65 B. 0.75 C. 0.8 D. 0.85
Mathematics
Estimate by using front-end rounding. 
A. 200 B. 240 C. 300 D. 238
Mathematics