Use Cramer's rule to solve the system. If D = 0, use another method to complete the solution. x + y + z = 0 x - y + 2z = -42x + y + z = -5
A. {(2, -5, 3)}
B. ?
C. {(-5, 3, 2)}
D. {(2, 3, -5)}
Answer: C
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Rewrite the expression using the indicated property of real numbers.Commutative property of addition:
7 + 4
A. (4)(7) B. 4 + 7 C. 7 + 4 D. (7)(4)
Solve the problem.Marty's Tee Shirt & Jacket Company is to produce a new line of jackets with an embroidery of a Great Pyrenees dog on the front. There are fixed costs of $610 to set up for production, and variable costs of $30 per jacket. Write an equation that can be used to determine the total cost, C(x), encountered by Marty's Company in producing x jackets.
A. C(x) = 610 + 30x B. C(x) = 610 - 30x C. C(x) = (610 + 30) x D. C(x) = 610x + 30
Write the equation of the line whose graph is shown.
A. y = - x + 2 B. y = x + 2 C. y = x - 2 D. y = - x - 2
Solve. A particular vitamin comes in 100 milligram tablets. Convert this to ounces. Round answer to the nearest thousandth, if necessary.
A. 0.04 oz B. 0.004 oz C. 1000 oz D. 3.53 oz