Find the circumference of the circle. Then use the approximation 3.14 for ? and approximate the circumference.
A. 12.16 m
B. 12.56 m
C. 25.12 m
D. 24.32 m
Answer: C
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Use the information below to determine the cardinality of the set. U = {x | x ? N and x ? 12} A = {x | x ? N and 6 < x < 12} B = {x | x ? N and x is even and x < 12}n(A ? B)
A. 12 B. 2 C. 3 D. 8
Find the equation that the given graph represents.
A. f(x) = -x4 + x2 - 3x - 4 B. f(x) = 2x3 + x2 - 3x + 4 C. f(x) = -x3 - x - 4 D. f(x) = 2x4 - x2 + 4
Solve the equation. If the solutions involve square roots, give both the exact solutions and the approximate solutions to three decimal places.x2 - x = 56
A. -7, -8 B. 1, 56 C. 7, 8 D. -7, 8
Solve the problem.From a balloon 752 feet high, the angle of depression to the ranger headquarters is 47°49'. How far is the headquarters from a point on the ground directly below the balloon (to the nearest foot)?
A. 681 ft B. 676 ft C. 671 ft D. 686 ft