If the equation represents a hyperbola, find the center, foci, and asymptotes. If the equation represents an ellipse, find the center, vertices, and foci. If the equation represents a circle, find the center and radius. If the equation represents a parabola, find the focus and directrix. x2 - 6x + 4y + 25 = 0
A. F: (3, -5); D: y = -3
B. F: (3, -3); D: y = -5
C. F: 
; D: y = - 
D. F: (3, -8); D: y = 0
Answer: A
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Use the method of writing each premise in symbols in order to write a conclusion that yields a valid argument.If it's not Saturday, then Dad will shave. If Dad has whiskers, then he did not shave. If it's Saturday, then Dad will take us to the game.
A. If Dad has whiskers, then he will take us to the game. B. If Dad did not shave, then he has whiskers. C. If Dad shaves, then it's not Saturday. D. If Dad takes us to the game, then he has whiskers.
Solve the problem.Bob owns a watch repair shop. He has found that the cost of operating his shop is given by 
, where c is cost and x is the number of watches repaired. How many watches must he repair to have the lowest cost?
A. 71 watches B. 33 watches C. 35 watches D. 40 watches
Find a general expression for the slope of a tangent line to the indicated curve.y = 2.1 - 3x2
A. -3x B. 2.1 - 6x C. 2.1 - 6x2 D. -6x
Solve for rate in the problem. Round to the nearest tenth of a percent.69.2 yards is % of 5 yards.
A. 7.2 B. 13,840.0 C. 1384.0 D. 0.7