Find the root.
A. 27
B. Not a real number
C. 9
D. 3
Answer: D
Mathematics
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The table lists some input-output pairs for an exponential function f. Use the table to find the requested value.Find f(3). 
A. 8 B. 3 C. 6 D. 2
Mathematics
Use conversion factors to convert the units of measure.6.25 tons to pounds
A. 12,500 lb. B. 0.03125 lb. C. 1,250 lb. D. 0.003125 lb.
Mathematics
Factor by grouping.(x - 5)(x - 7) + (x - 5)
A. (x - 5)(x - 6) B. (x + 5)(x + 8) C. (x + 5)(x - 8) D. (x - 5)(x - 8)
Mathematics
Find the quadratic function y = f(x) that has the given vertex and whose graph passes through the given point.(-3, -81)
A. y = - 
x2
B. y = 9x2
C. y = -3x2
D. y = -9x2
Mathematics