Find an equation for the ellipse described.Center at (0, 0); focus at (-2, 0); vertex at (6, 0)
A. 
+ 
= 1
B. 
+ 
= 1
C. 
+ 
= 1
D. 
+ 
= 1
Answer: D
Mathematics
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if f(x) = -ln(cos x)
A. 1
B. - 
C. - 
D. 
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Find the indicated matrix.Let A = [-2 2] and B = [1 0]. Find 2A + 3B.
A. [-4 4] B. [-3 4] C. [1 2] D. [-1 4]
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Write in exponent form.9
A. 1 ? 9 B. 91 C. 92 D. 19
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Find the real solutions, if any, of the equation. Use the quadratic formula.12x = 2x2
A. {0, 6} B. {0, - 6} C. {6, - 6} D. {0}
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