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)
Answer: C
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Rwhere R is the parallelepiped bounded by the planes 
A. 5
B. 
C. 30
D. 
Solve the exponential equation. Use a calculator to obtain a decimal approximation, correct to two decimal places, for the solution.3 x + 6 = 5
A. {-0.56} B. {1.46} C. {-4.54} D. {6.68}
Translate the phrase to an algebraic expression.The difference between six times a number and ten
A. 6 - x + 10 B. 10 + 6x C. 10 - 6x D. 6x - 10
Determine whether the statement is true or false.Every rational number is an integer.
A. True B. False