Find the union or intersection as indicated.Find A ? B if A = {x|x < -3} and B = {x|x ? 6}
A. ?
B. {x|-3 < x ? 6}
C. {x|x < -3 ? x ? 6}
D. {x|x > -3}
Answer: C
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Determine if the expression is a polynomial. If so, state the number of terms in the polynomial and give its degree.1
A. Yes; 1; 1 B. No C. Yes; 0; 1 D. Yes; 1; 0
Find a set of parametric equations for the conic section or the line.Hyperbola: Vertices: (6, 0); Vertices: (-6, 0); Foci: (10, 0) and (-10, 0)
A. x = 6 sec t, y = 8 tan t B. x = 8 sec t, y = 6 tan t C. x = 6 sec t, y = 10 tan t D. x = 36 sec t, y = 64 tan t
Simplify the radical. Indicate if the radical is not a real number. Assume that x represents a positive real number.
A. 22 B. 242 C. -22 D. Not a real number
Solve the problem.The number of patients Dr. Wong can see varies directly as the time it takes her to see them. If she can see 9 patients in 2 hours, how long would it take her to see 90 patients?
A. 18 hours B. 20 hours C. 19 hours D. 405 hours