Factor by grouping.2x + 20 + xy + 10y
A. (y + 10)(x + 2)
B. (y + 10)(2x + y)
C. (x + 10y)(2 + y)
D. (x + 10)(2 + y)
Answer: D
Mathematics
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Describe the graph of the polar equation. 8r cos ? + r sin ? = 5
A. Vertical line passing through (8, 0) B. Parabola with vertex (8, 5) opening upward C. Line with slope -8 and y-intercept (0, 5) D. Line with slope 5 and y-intercept (0, 8)
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Find all horizontal asymptotes of the given function, if any. f(x) = 
A. y = 0 B. y = -36 C. no horizontal asymptotes D. y = -1, y = 1
Mathematics
Multiply and simplify.
? 
A. 
B. 
C. 
D. 
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Find the average rate of change for the function between the given values.f(x) = 4x2; from 0 to 
A. 
B. 7
C. 2
D. - 
Mathematics