Solve. $700 is deposited into an account with interest rate r (in decimal form), compounded annually. The amount in the account after t years is given by 
Calculate the amount in the account after 3 years if the interest rate r is 0.06. Round your answer to the nearest cent.
A. $833.71
B. $700.00
C. $883.71
D. $783.71
Answer: A
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Solve the problem.A company purchases a piece of equipment for A dollars, and the equipment depreciates at a rate of r each year. Its value V after n years is given by 
Expand this expression for n = 6.
A. V = A(1 + 6r + 15r2 + 20r3 + 15r4 + 6r5 + r6) B. V = A(1 - 6r + 15r2 - 20r3 + 180r4 - 720r5 + r6) C. V = A(1 - 6r + 15r2 - 20r3 + 15r4 - 6r5 + r6) D. V = A(1 + 6r + 15r2 + 20r3 + 180r4 + 720r5 + r6)
Find the first two nonzero terms of the Maclaurin expansion of the given function.f(x) = sin x2
A. x2 + 
x3 + ...
B. x2 - 
x6 + ...
C. x2 - 120x6 + ...
D. x2 - 
x3 + ...
Use De Moivre's theorem to simplify the expression. Write the answer in a + bi form.(-5
+ 5i
)3
A. 5
+ 5i
B. 500
+ 500i
C. 50
+ 50i
D. 15
+ 15i
Write a polynomial equation in standard form with the given solutions.
, - 
A. 15x2 - 18x + 17 = 0
B. 15x2 + 17x + 18 = 0
C. 15x2 + 17x - 
= 0
D. 15x2 + 17x - 18 = 0