Find the foci of the ellipse.
+ 
= 1
A. (-2, -4), (4, -4)
B. (-4, -4), (-4, 6)
C. (-4, -3), (-4, 5)
D. (-4, -2), (-4, 4)
Answer: D
Mathematics
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Simplify the radical expression. Assume that all variables represent positive real numbers.
A. 
B. 
C. 
D. 
Mathematics
For the pair of functions, find the product (fg)(x).f(x) = 4x + 2, g(x) = x2 + 6x - 7
A. x2 - 10x + 5 B. x3 - 26x2 - 22x - 17 C. 4x3 + 26x2 - 16x - 14 D. 5x3 + 28x2 + 16x - 13
Mathematics
Solve the compound inequality. Other than ?, graph the solution set on a number line.5x - 9 ? -19 and 5x - 4 ? 11
A. [-2, 3]
B. [3, ?)
C. [-2, ?)
D. (-?, -2] ? [3, ?)
Mathematics
Find x.log5 (2x + 3) = log5 (13)
A. x = 20 B. x = 8 C. x = 5 D. x = 32
Mathematics