Write a formula for the nth term of the geometric sequence.-3, -9, -27, -81, -243, . . .
A. an = a1 + 3n
B. an = -3(3)n - 1
C. an = -3(3n)
D. an = -3(3)n
Answer: B
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Find the integral.
A. ln 2
B. 
C. - 
D. 
Solve the problem.Tim needs to apply 3
gallons of herbicide per acre of soybeans. How many gallons of herbicide are needed for 220 acres?
A. 58
gallons
B. 168 gallons
C. 825 gallons
D. 165
gallons
The growth of a town's population is modeled by 
. How large will the population be when 
?
? Please enter your answer as a number without the units, rounded to the nearest integer. Fill in the blank(s) with the appropriate word(s).
Solve the problem.In Country X, the average hourly wage in dollars from 1960 to 2010 can be modeled by f(x) = 
Use f to estimate the average hourly wages in 1965, 1985, and 2005.
A. $0.77, $2.27, $6.67 B. $0.77, $3.05, $6.67 C. $3.43, $0.39, $6.67