Use a computer or graphing calculator to find the one-sided limit. Begin by plotting the function in an appropriate window. Your computer may indicate that the limit does not exist, but, if so, you should be able to interpret the answer as either ? or -?.
x
A. ?
B. -?
C. e
D. 1
Answer: D
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Solve the problem.Use the following table to calculate the federal income tax due for the taxable income $18,108. 
A. $2951.30 B. $2716.20 C. $2252.45 D. $1066.63
A small country consists of four states. The population of State A is 44,800, the population of State B is 52,200, the population of State C is 49,200, and the population of State D is 53,800. The total number of seats in the legislature is 100.Under Hamilton's method, the apportionments to each state are
A. State A: 23 seats; State B: 26 seats; State C: 24 seats; State D: 27 seats. B. State A: 22 seats; State B: 26 seats; State C: 25 seats; State D: 27 seats. C. State A: 22 seats; State B: 26 seats; State C: 24 seats; State D: 26 seats. D. State A: 22 seats; State B: 26 seats; State C: 24 seats; State D: 28 seats. E. none of these
For the given polar equation, write an equivalent rectangular equation.r(1 - 2 cos ?) = 1
A. x2 + y2 = 1 + 2x
B. x2 + y2 = 2 + x
C. 
= 1 + 2x
D. 
= 2 + x
Use the Factor Theorem to determine whether x - c is a factor of f. If it is, write f in factored form, that is, write f in the form 
f(x) = 2x3 + 16x2 + 39x + 45; c = -5
A. No B. Yes; f(x) = (x - 5)(2x2 + 6x - 9) C. Yes; f(x) = (x + 5)(2x2 + x + 9) D. Yes; f(x) = (x + 5)(2x2 + 6x + 9)