Use the distributive property to rewrite the expression.-8(5x) - 8(5y)
A. -40x - 40y
B. -16(5x + 5y)
C. -8(5x + 5y)
D. -8x(5 + 5) = -80x
Answer: C
Mathematics
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Sketch the surface z = f(x,y).f(x, y) = 2 -x2 - y2
A. 
B. 
C. 
D. 
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Find an equation for the circle.Center at (-1, -4), radius 
A. (x + 4)2 + (y + 1)2 = 25 B. (x - 4)2 + (y - 1)2 = 25 C. (x - 1)2 + (y - 4)2 = 5 D. (x + 1)2 + (y + 4)2 = 5
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If a is a real number, find the domain of the function 
.
?
A. ?
B. ?
C. ?
D. 
E. ?
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Use the Factor Theorem to determine whether x - c is a factor of f(x).f(x) = x4 + 11x3 + 5x2 + 46x - 99; x + 11
A. Yes B. No
Mathematics