Find the vertices and locate the foci for the hyperbola whose equation is given.4y2 - 16x2 = 64
A. vertices: (-4, 0), (4, 0)
foci: (-2
, 0), (2
, 0)
B. vertices: (0, -2), (0, 2)
foci: (0, -2
), (0, 2
)
C. vertices: (0, -4), (0, 4)
foci: (0, -2
), (0, 2
)
D. vertices: (-2, 0), (2, 0)
foci: (-2
, 0), (2
, 0)
Answer: C
You might also like to view...
Solve the inequality analytically. Support the answer graphically. Give exact values for endpoints.x2 - 2x - 15 < 0
A. (5, ?) B. (-?, -3) C. (-?, -3) ? (5, ?) D. (-3, 5)
Use either the binomial theorem or Pascal's Triangle to expand the binomial.(4 - y)4
A. 256y - 16y2 - 24y3 - 12y4 B. 256 + 256y - 96y2 + 16y3 - y4 C. 256 - 256y + 96y2 - 16y3 + y4 D. 256 - 16y + 24y2 - 12y3 + y4
A small town has only two dry cleaners, Fast and Speedy. Fast hopes to increase its market share by conducting an extensive advertising campaign. The initial market share for Fast was 40% and 60% for Speedy. Solve the problem.Use the initial market share as an initial distribution matrix, along with the following stochastic matrix, to find the market share for each firm for the second batch of clothing after the campaign. Round your answer to the nearest percent.FastSpeedy 
A. 68% for Fast and 33% for Speedy B. 53% for Fast and 47% for Speedy C. 33% for Fast and 68% for Speedy D. 47% for Fast and 53% for Speedy
Find fx, fy, and f?.f(x, y, ?) = x2y + y2? + x?2
A. fx = 2xy + ?2; fy = x2 + 2y?; f? = y2 + 2x? B. fx = 2xy + ?2; fy = x2 + y?; f? = y2 + x? C. fx = 2xy; fy = x2 + 2y?; f? = y2 + 2x? D. fx = 2y + ?2; fy = x2 + 2?; f? = y2 + 2x