Use the formula for the sum of the first n terms of a geometric sequence to solve.Find the sum of the first 9 terms of the geometric sequence: 3, 9, 27, 81, 243, . . . .
A. 29,560
B. 29,503
C. 29,525
D. 29,523
Answer: D
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Find the volume of the described solid.The solid lies between planes perpendicular to the x-axis at x = - 1 and x = 1. The cross sections perpendicular to the x-axis are semicircles whose diameters run from 
to 
A. 
?
B. 
?
C. 
?
D. 
?
Solve the problem.A ship in the Pacific Ocean measures its position to be 21°40' north latitude. Another ship is reported to be due north of the first ship at 46°51' north latitude. Approximately how far apart are the two ships? Round to the nearest mile. Assume that the radius of the Earth is 3960 miles.
A. 1741 mi B. 99,726 mi C. 99,710 mi D. 1725 mi
Solve the problem.A furniture manufacturer decides to make a new line of desks. The table shows the profit, in thousands of dollars, for various levels of production.
Find a quadratic function to model the data, and use the model to predict the profit if 450 desks are made.
A. Just under $45,000 B. Almost $44,000 C. Just over $40,000 D. Almost $42,000
Find the absolute maximum and absolute minimum values of the function, if they exist, on the indicated interval.f(x) = 2 - x2/3; [-64, 64]
A. Absolute maximum: 64, absolute minimum: -64 B. Absolute maximum: 2 C. Absolute maximum: 2, absolute minimum: -14 D. There are no absolute extrema.