Given that the polynomial function has the given zero, find the other zeros.f(x) = x4 - 21x2 - 100; -2i
A. 2i, 5i, -5i
B. 2i, 10i, -10i
C. 2i, 10, -10
D. 2i, 5, -5
Answer: D
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Find the first four terms of the indicated expansion.
15
A. x30 + 
x28y + 
x26y2 + 
x24y3 + . . .
B. x30 + 
x28y + 
x26y2 + 
x24y3 + . . .
C. x15 + 
x14y + 
x13y2 + 
x12y3 + . . .
D. x30 + 
x28y + 
x26y2 + 
x24y3 + . . .
Find the limit.
A. Does not exist B. 1/2 C. 1/4 D. 0
Use the compound interest formulas A = P
nt and 
to solve.Find the accumulated value of an investment of $11,000 at 6% compounded semiannually for 7 years.
A. $16,638.49 B. $15,620.00 C. $13,528.61 D. $16,539.93
Find the expected value of the optimal strategy.A clothing manufacturer must decide which of two clothing lines to emphasize for the spring season, her usual line or a budget line. Her success with each line depends on the state of the economy next year. She estimates the payoff matrix to be as follows:StrongIn-betweenWeakEconomyEconomyEconomy
Economists believe that there is a 10% chance of a strong economy next year, a 60% chance of a weak economy, and a 30% chance of an 
-4.0px;" /> economy. What is the manufacturer's maximum expected profit?
A. $25,000
B. $18,100
C. $20,333
D. $24,900