Factor the polynomial by grouping.3x2 + 7x + 21x + 49
A. (x + 7)(3x + 7)
B. (3x + 7)(7x + 3)
C. (3x + 7)(3x + 7)
D. prime
Answer: A
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Graph the piecewise-defined function 
if
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.
What will be an ideal response?
Find A-1 without a calculator.A = 
A. A-1 = 
B. A-1 = 
C. A-1 = 
Obtain the five-number summary for the given data.The weekly salaries (in dollars) of sixteen government workers are listed below.
A. 463, 543.00, 637.5, 718.5, 826 dollars B. 463, 536, 633, 690, 826 dollars C. 463, 543.00, 633, 718.5, 826 dollars D. 463, 550.0, 637.5, 709, 826 dollars
Find the probability of the given event.A bag contains 19 balls numbered 1 through 19. A randomly chosen ball has an even number.
A. 
B. 
C. 9
D. 