Let A = {1, 3, 5, 7}; B = {5, 6, 7, 8}; C = {5, 8}; 
and 
Determine whether the given statement is true or false.C ? D
A. True
B. False
Answer: A
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Find the cardinal number of the indicated set. Use the cardinal number formula.If n(A) = 25, n(A ? B) = 73, and n(A ? B) = 21, find n(B).
A. 68 B. 48 C. 70 D. 69
The following table shows the length L, in inches, and the flying speed S, in feet per second, of certain flying animals. L 0.52 3.98 4.51 47.83 62.05 S 21.98 36.86 39.72 61.41 74.33? Use power regression to answer the following question. If the length is doubled, how is the flying speed affected? Round your answer to two decimal places. ?
A. It is multiplied by 0.06. B. It is multiplied by 0.76. C. It is multiplied by 2.00. D. It is multiplied by 1.18.
Solve the problem.Alex and Juana went on a 100-mile canoe trip with their class. On the first day they traveled 11 miles. What percent of the total distance did they canoe?
A. 900% B. 9% C. 11% D. 0.11%
Use a calculator to write the expression as a decimal rounded to three decimal places.591/2
A. 7.678 B. 7.686 C. 59.000 D. 7.681