Solve the problem.A survey of 145 college students was done to find out what elective courses they were taking. Let A = the set of those taking art, B = the set of those taking basketweaving, and C = the set of those taking canoeing. The study revealed the following information.n(A) = 45 n(A ? B) = 12n(B) = 55 n(A ? C) = 15n(C) = 40 n(B ? C) = 23n(A ? B ? C) = 2How many students were not taking any of these electives?
A. 63
B. 10
C. 53
D. 55
Answer: C
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Determine whether the graph is that of a function. If it is, use the graph to find its domain and range, the intercepts, if any, and any symmetry with respect to the x-axis, the y-axis, or the origin.
A. function domain: {x|x ? 0} range: {y|y ? -2} intercepts: (-2, 0), (0, -2), (2, 0) symmetry: y-axis B. function domain: all real numbers range: all real numbers intercepts: (-2, 0), (0, -2), (2, 0) symmetry: none C. function domain: {x|x ? -2} range: {y|y ? 0} intercepts: (-2, 0), (0, -2), (2, 0) symmetry: none D. not a function
Solve the problem.The surface area A of a right circular cylinder is A = 2?r2 + 2?rh, where r is the radius and h is the height. Find the radius of a right circular cylinder whose surface area is 95.36? square inches and whose height is 11.7 inches.
Fill in the blank(s) with the appropriate word(s).
Find the indicated term of the geometric sequence.a1 = -5, r = -2; find a11
A. -5116 B. -5120 C. -25 D. 10,240
A survey of 500 people showed that 75% watched the evening news. Find the error bounds on the proportion that watch the evening news using the 95% confidence level.
What will be an ideal response?