Find the sum of the sequence. 
A. - 
B. 
C. 
D. - 
Answer: D
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Solve the given equation.
Find the LCM of the given polynomials.x - 7, 7 - x
A. x + 7 B. (x - 7)(7 - x) C. (x - 7) or (7 - x) D. -1
Solve the problem.The consumption of electricity can be modeled by C = Aert, where A is the current use, r is the rate at which the use is increasing, and t is the number of years. Suppose the consumption of electricity grows at 6.8% per year. Find the number of years before the use of electricity has tripled. Round the answer to the nearest hundredth.
A. 0.16 year B. 1.62 years C. 16.16 years D. 44.12 years
Solve.A planet orbits the sun every 31.9 years. Write this decimal in words.
A. thirty-one and nine hundredths B. thirty-one and nine tenths C. thirty-one and nine thousandths D. thirty-one and nine millionths