Find the equation that the given graph represents.
A. f(x) = 2x3 - 12x2 - 5x - 12
B. f(x) = x4 - 2x2 - 3x + 12
C. f(x) = 3x2 - 5x + 12
D. f(x) = -3x3 - 10x2 + 5x + 12
Answer: D
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Find the circumference of the circle whose radius or diameter is given. Use 
or 
as indicated. d = 18 mi. Use ? ? 3.14.
A. C ? 113.04 mi B. C ? 254.34 mi C. C ? 28.26 mi D. C ? 56.52 mi
Find the domain and range and describe the level curves for the function f(x,y).f(x, y) = 9x2 - 5y2
A. Domain: all points in the xy-plane; range: real numbers z ? 0; level curves: ellipses 
B. Domain: all points in the xy-plane; range: all real numbers; level curves: hyperbolas 
C. Domain: all points in the first quadrant of the xy-plane; range: all real numbers; level curves: hyperbolas 
D. Domain: all points in the xy-plane; range: all real numbers; level curves: ellipses 
A fair coin is flipped eight times. Find the probability that exactly three of the flips lands tails.
What will be an ideal response?
Multiply without using pencil and paper or a calculator.
?
?
A. 32,700 B. 327,000 C. 1,327 D. 427 E. 3,270