Evaluate or simplify the expression without using a calculator.7
A. 12.0594
B. 3.92
C. 392
D. 39.2
Answer: D
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Use a calculator to approximate the number. (Round your answer to three decimal places.)
A. -3.176 B. 11162.377 C. -11159.051 D. -3.970 E. 5.548
Solve.The FDA approves a new drug and has confirmed by independent research that the strength of the reaction to the drug is given by the formula S(d) = 
?d2 - 
d3, where d is the dosage amount of the drug and ? is a constant. Find an equivalent expression for S(d) by factoring out a common factor.
A. d2(
? - 
d)
B. 
(
? - d)
C. 
(? - d)
D. d2(
? + 
d)
Solve the problem.The area of a square is numerically 3 less than the perimeter. Find the length of the side, if the side is greater than 1.
A. 3 units B. 5 units C. 12 units D. 6 units
Solve the problem.A piece of farm machinery costs 
and depreciates at the rate of 
per year.a) If y represents the the value of the machinery after x years, write an equation for the value of the machinery.b) Graph the equation.c) What is the relationship between the slope of the line and the per-year depreciation?
A. a) y = 510x - 6000
b) 
c) The magnitude of the slope of the line is
the same as the per-year depreciation.
B. a) y = 510x + 6000
b) 
c) The magnitude of the slope of the line is
the same as the per-year depreciation.
C. a) 6000 = y - 510x
b) 
c) The magnitude of the slope of the line is
the same as the per-year depreciation.
D. a) y = 6000 - 510x
b) 
c) The magnitude of the slope of the line is
the same as the per-year depreciation.