The augmented matrix of a system of equations has been transformed to an equivalent matrix in row-echelon form. If the system is consistent, then give the solution. If it is not, then state that it is inconsistent.
A. (71, -26, 5)
B. (71, -28, 5)
C. (76, -28, 5)
D. Inconsistent
Answer: C
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A. 1877 years B. 1069 years C. 870 years D. 1917 years
Translate the phrase into a mathematical expression and then find the result.205 gallons less than 1656 gallons
A. 205 + 1656; 1761 gallons B. 1656 + 205; 1861 gallons C. 1656 - 205; 1441 gallons D. 1656 - 205; 1451 gallons
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A. 108° B. 120° C. 135° D. 720°
?Find the marginal cost for producing x units. (The cost is measured in dollars.)
?
?
A. ?$9,800 B. ??$9,850 C. ??$8,800 D. ??$8,850 E. ???$9,750