Use De Morgan's laws to negate the statement without using parentheses.~r ? (s ? ~t)
A. r ? s ? ~t
B. r ? ~s ? t
C. r ? ~s ? t
D. r ? ~s ? t
Answer: C
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Find the inverse of the relation.{(-1, 5), (0, 5), (1, -8), (2, 9)}
A. {(5, -1), (0, -8), (1, 9)} B. {(5, -1), (9, -8), (1, 0)} C. {(-1, 9), (-1, -8), (1, 0)} D. {(5, -1), (5, 0), (-8, 1), (9, 2)}
Find ? for 0° ? ? < 360° that satisfies the stated conditions. Round your answer to the nearest hundredth.sec ? = -3.3333, tan ? < 0
A. 107.46° B. 252.54° C. 108.93° D. 104.69°
Solve the problem.A cable company charges by the number of movie channels a subscriber chooses. The cost is given by 
where x is the number of movie channels. What is the cost for 2 movie channels.
A. $88.06 B. $27.50 C. $31.20 D. $19.30
Even with most of the problem missing, it is possible to tell whether a suggested answer is reasonable. Determine whether the answer given is reasonable. If it is unreasonable, move the decimal point or insert a decimal point to make the answer reasonable.How tall is the skyscraper?3 feet
A. Unreasonable, should be 0.30 feet B. Reasonable C. Unreasonable, should be 30 feet D. Unreasonable, should be 300 feet