Provide an appropriate response.Rewrite the following equation, replacing the sum on the left side with a summation.1 + 2 + 3 + 4 + ... + n = 
A. 
B. 
C. 
D. 
Answer: D
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Provide an appropriate response.Find the arc length of the indicated sector of the given circle. 
A. 18.37 ft B. 77.34 ft C. 0.05 ft D. 5.85 ft
Provide an appropriate response.Suppose you wish to purchase a mine that will yield an annual return of $32,000 for 12 years, after which the mine will have no value. You want to earn 8% annually on this investment and also set up a sinking fund to replace the purchase price. If money is placed in the fund at the end of each year and earns 6.2% compounded annually, how much should you pay for the mine?
Fill in the blank(s) with the appropriate word(s).
Provide the requested response.For the viewing rectangle [-40, 40, 5] by [0, 30, 5] , state the number of tick marks on the positive x-axis.
A. 13 B. 8 C. 6 D. 10
Look for a pattern and then predict the general term, or nth term, an, of the sequence.3, 9, 27, 81, 243, . . .
A. an = 6n B. an = 3n C. an = 3n-1 + 2 D. an = 3 + 6(n - 1)