Find the standard form of the equation of the following conic section.center (-8.5, 0); r = 2
A. (x + 8.5)2 + y2 = 4
B. (x + 8.5)2 + y2 = 16
C. (x + 8.5)2 + y2 = 2
D. (x - 8.5)2 + y2 = 4
Answer: A
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, x ? 8
A. f-1(x) = x2 - 8, x ? 0 B. f-1(x) = x2 + 8, x ? 0 C. f-1(x) = x + 8, x ? 0 D. Not a one-to-one function
Solve the equations.x2 = 
A. 
B. ± 
C. ± 
D. 
Solve the problem. Round to the nearest tenth unless indicated otherwise.The resistance of a wire varies directly as the length of the wire and inversely as the square of the diameter of the wire. A 20 foot length of wire with a diameter of 
has a resistance of 
What would the resistance be for a 
length, with diameter 
of the same kind
of wire ? A. 368 ohms B. 375 ohms C. 372.5 ohms D. 387 ohms
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A. $48.36 B. $49.90 C. $74.40 D. $55.90