Determine if the geometric series converges or diverges. If it converges, find its sum.1 + 
+ 
2+ 
3 + 
4 + . . .
A. converges, 
B. converges, 
C. diverges
D. converges, 2
Answer: A
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Perform the indicated operation and express in lowest terms.
÷ 
A. 
B. 
C. 
D. 
Add or subtract. Assume all variables represent nonnegative real numbers.5
+ 2
A. 
B. 6
C. 7
D. 8
Tritium, a radioactive isotope of hydrogen, has a half-life of 12.4 years. Of an initial sample of 33 grams, how much will remain after 69 years? ?
A. 0 grams B. 29.1351 grams C. 10.9074 grams D. 8.2500 grams E. 0.6973 grams
Solve the problem.Suppose y = mx + b is a mathematical model for actual time as a function of estimated time, where y represents actual time and x represents estimated time and m and b are constants. If m = 1.2 and b = -4.8, find y when x is 60 min.
A. 67.2 min B. 54.24 min C. 76.8 min D. 65.76 min