Express the sum using summation notation. Use a lower limit of summation not necessarily 1 and k for the index of summation.24 + 34 + 44 + . . . + 74
A. 
B. 
C. 
D. 
Answer: D
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Match the graph to one of the polar equations.
A. r = 2 sin ? B. r = 2 cos ? C. r = 1 D. r sin ? = 1
Solve the problem. Round rates to the nearest tenth of a percent as necessary, amounts to the nearest dollar, and time to the nearest day.Mark Golden needs $7427.36 to pay for remodeling work. His bank loans money at a discount rate of 9% for 270 days. Find the face value of a loan so he will have $7427.36.
A. $7965.00 B. $8095.82 C. $7957.11 D. $7427.36
Perform the conversion. Round to the nearest tenth when necessary.400° C to Fahrenheit
A. 752° F B. 688° F C. 206.2° F D. 241.8° F
Solve the logarithmic equation. Be sure to reject any value that is not in the domain of the original logarithmic expressions. Give the exact answer.2 + 2 ln x = 7
A. 
B. 
C. 
D. 