Find n for the given value of an in the arithmetic sequence.an = 291; 4, 11, 18, . . .
A. n = 42
B. n = 44
C. n = 40
D. n = 41
Answer: A
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Derive the formula.
What will be an ideal response?
Evaluate the double integral over the given region.
R: 8 ? x ? 10, 8 ? y ? 10
A. 
2
B. 
2
C. 
D. ln 
Describe the end behavior of the polynomial function by finding 
f
and 
f(x) = -5x2 + 5x3 + 5x - 2
A. -?, ? B. ?, ? C. -?, -? D. ?, -?
Solve.The concentration of a certain gas molecule in the atmosphere serves as an indicator of industrial air pollution. The data in the following table show the relationship of the estimated concentration of the molecule in the atmosphere, in parts per billion (ppb), to the year.
Determine the linear, quadratic, or cubic function that best fits the data.
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