Solve the system using the inverse method.
A. x = -3, y = 1
B. x = -1, y = 3
C. x = 3, y = -1
D. x = 1, y = -3
Answer: D
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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 + y2 - 6x - 8y = 24
A. (-4, -3); r = 49 B. (4, 3); r = 7 C. (3, 4); r = 7 D. (-3, -4); r = 49
Given that the x- and y-coordinates of a moving particle are given by the indicated parametric equations, find the magnitude and direction of the acceleration for the specific value of t.x = 2t2 + 5t + 6, y = 7t2 - 9t - 1, t = 5
A. 14.56; 74.1° B. 7.28; 74.1° C. 14.56; 254.1° D. 7.28; 254.1°
Round the number as indicated.One year, a certain country reported tax revenues of $16,194,416,459. Round this amount to the nearest hundred thousand dollars.
A. $16,194,420,000 B. $16,194,416,500 C. $16,194,400,000 D. $16,194,000,000
Use a positive rational exponent to write the expression.
A. (2c - 8)6/5
B. 
C. (2c - 8)-5/6
D. (2c - 8)5/6