Graph the function by first finding the relative extrema.f(x) = 
A. 
B. 
C. 
D. 
Answer: B
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Write the expression with positive exponents only. Then simplify, if possible.5-3
A. -125
B. 
C. 
D. 125
Evaluate.2m + 3n for m = 5 and n = 9
A. 5 B. 37 C. 13 D. 29
Find the real solutions, if any, of the equation. Use the quadratic formula.2x2 + 12x + 5 = 0
A. 
B. 
C. 
D. 
Write an algebraic expression for the specified quantity.A car radiator has 60 liters of a mixture that is 40% antifreeze. To strengthen the mixture, pure (100%) antifreeze must be added. Let x = the number of liters of pure antifreeze added to the 60-liter mixture. Write an algebraic expression for (i) the number of liters of mixture there will be once the pure antifreeze is added; (ii) the number of liters of antifreeze in the mixture obtained by adding the pure antifreeze to the original 60-liter mixture.
A. (i) 60 - x (ii) 24 - x B. (i) 60 + x (ii) 24 + x C. (i) 60 - x (ii) 20.0 + x D. (i) 60 + x (ii) 30 + x