Find a polynomial of least degree with only real coefficients and having the given zeros.-
, 
, and -7 (multiplicity 2)
A. f(x) = x3 - 7x2 - 6x + 42
B. f(x) = x4 - 14x3 - 43x2 + 84x + 294
C. f(x) = x3 + 7x2 - 6x - 42
D. f(x) = x4 + 14x3 + 43x2 - 84x - 294
Answer: D
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Solve.The marketing division of a company predicts that 72% of the 250 special promotional sale items will sell on the first day of sale. What percent of the promotional items should be available after the first day of sale? How many special promotional items should be available after the first day of sale?
A. 72%; 70 items B. 72%; 180 items C. 28%; 180 items D. 28%; 70 items
Convert the units using unit fractions.36,960 ft = 
mi
A. 7.5 B. 184.8 C. 7 D. 8
Evaluate the expression when x = 2, y = 1, and z = 4.2z2
A. 16 B. 32 C. 18 D. 12
Solve the system of equations by the substitution method. Check your solutions. For any dependent equations, write your answer in ordered pair form.
A. {(-4, 3), (-3, 4)} B. {(4, -3), (3, -4)} C. {(-4, -3), (-3, -4)} D. {(4, 3), (3, 4)}