Find the foci and endpoints of each axis for the given ellipse.16x2 + 9y2 = 144
A. Foci: (± 7, 0); vertices: (± 9, 0);
endpoints of the minor axis: (0, ± 16)
B. Foci: (±
, 0); vertices: (± 4, 0);
endpoints of the minor axis: (0, ± 3)
C. Foci: (0 , ±
); vertices: (0, ± 4);
endpoints of the minor axis: (± 3, 0)
D. Foci: (0, ± 7); vertices: (0, ± 16);
endpoints of the minor axis: (± 9, 0)
Answer: C
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A. - 
B. 
C. 
D. - 
Factor completely. If the polynomial is prime, so state.8x2 - 28x - 16
A. (8x - 4)(x + 4) B. 4(2x + 1)(x - 4) C. 4(2x - 1)(x + 4) D. prime
Write as an exponential equation.log28 = 3
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Solve the problem.Suppose a cost-benefit model is given by f(x) = 
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A. $5900 B. $5605 C. $19,000 D. $112,100