Find the directrices of the ellipse.9x2 + 4y2 = 36
A. y = ± 
B. y = ± 
C. x = ± 
D. x = ± 
Answer: A
Mathematics
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Find the determinant of the given matrix.
A. 206 B. -18 C. 18 D. -102
Mathematics
Translate the phrase to an algebraic expression. Use x to represent "a number."a. The product of a number and 10b. Twice a number subtracted from 8
A. a. 10x
b. 8 - 2x
B. a. 
b. 8 - 2x
C. a. 10x
b. 2x - 8
D. a. 
b. 2x - 8
Mathematics
Use the figure to solve the inequality.
f(x) > g(x)
A. {x|x ? -1 or x ? 2}; (-?, -1] or [2, ?) B. {x|-1 ? x ? 2}; [-1, 2] C. {x|-1 < x < 2}; (-1, 2) D. {x|x < -1 or x > 2}; (-?, -1) or (2, ?)
Mathematics
For the equation, find the slope. If the slope is undefined, state this.2x - 5y = 26
A. 
B. - 
C. 
D. - 
Mathematics