Simplify. Assume that no radicands were formed by raising negative quantities to even powers.
A. 28xy
B. 2x4y2
C. 2x2y
D. 4x2y
Answer: C
Mathematics
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Graph the function f(x) over the given interval. Partition the interval into 4 subintervals of equal length. Then add to your sketch the rectangles associated with the Riemann sum 
, using the indicated point in the kth subinterval for ck.f(x) = -3x2, [0, 4], midpoint
A. 
B. 
C. 
D. 
Mathematics
Simplify.-8(5x + 10y) + 4(2x + 7y)
A. -32x + 10y + 7 B. -120xy C. -3x - 52y D. -32x - 52y
Mathematics
Find the slope of the line. 
A. 4 B. -4 C. -1 D. 1
Mathematics
Simplify.60
A. 1 B. 6 C. -1 D. -6
Mathematics