Simplify the complex rational expression using Method I or Method II.
A. 8
B. x2 + 8
C. 
D. 
Answer: C
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Solve the problem.The base of a rectangular tank measures 10 ft by 20 ft. The tank is 17 ft tall, and its top is 10 ft below ground level. The tank is full of water weighing 62.4 lb/ft3. How much work does it take to empty the tank by pumping the water to ground level? Give your answer to the nearest ft ? lb.
A. 7,531,680 ft ? lb B. 3,924,960 ft ? lb C. 1,803,360 ft ? lb D. 1,803,530 ft ? lb
Use scientific notation to solve the problem.A light-year is the distance that light travels in one year. Find the number of miles in a light-year if light travels 1.86 x 105 miles per second.
A. 5.9 x 1012 miles B. 5.9 x 1014 miles C. 5.9 x 105 miles D. 5.9 x 107 miles
Write the number in scientific notation.67,000
A. 6.7 x 10-4 B. 6.7 x 10-5 C. 6.7 x 105 D. 6.7 x 104
Solve, rewrite in interval notation, and graph.6x - 4 < 2x or -4x ? -12
A. (-?, 1) ? [3, ?)
B. No solution
C. (1, 3)
D. [1, 3]