Find the sum of the first n terms of the following arithmetic sequence.a2 = 2, a5 = 47; n = 10
A. 610
B. -805
C. -610
D. 545
Answer: D
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A study of driving costs of 1992 model subcompact (four-cylinder) cars found that the average cost (car payments, gas, insurance, upkeep, and depreciation), measured in cents/mile, is approximated by the function
?
?
where x denotes the number of miles (in thousands) the car is driven in a year. What happens to the average cost as the number of miles driven increases without bound?
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A. It approaches 2,640 ¢/mi. B. It approaches 19 ¢/mi. C. It increases without bound. D. It becomes infinitely small.
Perform the indicated operations.( 9x4 + 7x2 - 7x ) - ( -8x3 + 5x2 - 7x - 4)
A. 9x4 - 8x3 + 12x2 - 4 B. 9x4 + 8x3 + 2x2 + 4 C. 10x4 + 9x3 + 12x2 + 4 D. 13x7 + 12x3
Pick which graph satisfies the given conditions.Cubic polynomial with two distinct real zeros and a positive leading coefficient.
A. 
B. 
C. 
D. 
Find the product.(-2m2z4)(3m2z2)
A. -6m6z4 B. -6m4z6 C. -6mz4 D. -6mz6