Multiply.(2a - 7b)(5a + 10b)
A. 10a2 - 15ab - 70b2
B. 10a2 - 15ab - 15b2
C. 10a2 + 20ab - 70b2
D. 10a2 - 35ab - 70b2
Answer: A
Mathematics
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A. 2x4 + x3 - x2 + 2x + 1, R = 6 B. 2x4 + x3 + x2 + 4x + 3, R = 8 C. 2x4 + x3 + 4x2 + 3x, R = 8 D. 2x4 - 3x3 - x, R = 6
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Change the Cartesian integral to an equivalent polar integral, and then evaluate.
A. 
?
B. 
?
C. 
?
D. 
?
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Find the domain of the logarithmic function.f(x) = log4(x + 3)2
A. (-?, 0) or (0, ?) B. (-3, ?) C. (-?, -3) or (-3, ?) D. (3, ?)
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Find the standard form of the equation of the ellipse with the following characteristics.
foci: 
major axis of length: 22
a. 
b. 
c. 
d. 
e. 
Mathematics