Solve the problem.A survey revealed that 50% of people are entertained by reading books, 33% are entertained by watching TV, and 17% are entertained by both books and TV. What is the probability that a person will be entertained by either books or TV? Express the answer as a percentage.
A. 17%
B. 83%
C. 66%
D. 100%
Answer: C
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Express the sum or difference as a product of sines and/or cosines.cos(4?) + cos(2?)
A. 2 sin(3?) sin ? B. 2 cos(3?) cos ? C. 2 cos(3?) sin ? D. 2 cos(3?)
Translate the problem to a system of equations, then solve using Cramer's Rule.During the 2001-2002 Little League season, the Tigers played 62 games. They won 18 more games than they lost. How many games did they lose that season?
A. 40 games B. 20 games C. 25 games D. 22 games
Solve the problem.A can has a surface area of 1118 square inches. Its height is 7.10 inches. What is the radius of the circular top? Round to the nearest hundredth.
A. 25.06 in. B. 4.69 in. C. 10.25 in. D. 13.06 in.
Find a quadratic inequality whose solution is given.
A. x2 - 2x - 3 > 0 B. x2 - 2x + 3 < 0 C. x2 - 2x - 3 < 0 D. x2 - 2x + 3 > 0