Find the integral.
A. sec 2x + C
B. tan 2x + C
C. 
tan2 x + C
D. 
tan x + C
Answer: C
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Solve. Round to the nearest hundredth, if necessary.The weight W of an object on the Moon varies directly as the weight E on earth. A person who weighs 
on earth weighs 21.6 lb on the Moon. How much would a 134-lb person weigh on the Moon?
A. 263.6 lb B. 670 lb C. 26.8 lb D. 0.2 lb
Solve and graph.x > 6 or x < 6
A. (-?, 6)
B. (-?, 6) ? (6, ?)
C. {6}
D. (6, ?)
Use a graphing utility to find or approximate solutions to the equation. If necessary, round your answers to three decimal places.5x2 - 45x + 100 = 0
A. 0, 4, 5 B. 4, 5 C. 5, 4, 5 D. -4, -5
Solve the problem.An 8-cylinder Crown Victoria gives 18 miles per gallon in city driving and 21 miles per gallon in highway driving. A 300-mile trip required 15.5 gallons of gasoline. How many whole miles were driven in the city?
A. 132 miles B. 147 miles C. 168 miles D. 153 miles