Solve the system of equations.5x -6y - z = -8x + 8y - 9z = 18-8x + y + z = -32
A. {(5, 3, 5)}
B. {(-5, 5, 10)}
C. ?
D. {(5, 5, 3)}
Answer: D
Mathematics
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Evaluate the integral.
A. 40?
B. 80?
C. 
?
D. 
?
Mathematics
Write the sentence as an inequality in two variables. Then graph the inequality.The y-variable is at least 5 more than the product of 2 and the x-variable.
A. y < 2x + 5
B. y > 2x + 5
C. y ? 2x + 5
D. y ? 2x + 5
Mathematics
Evaluate.2m + 3n for m = 5 and n = 9
A. 5 B. 37 C. 13 D. 29
Mathematics
Use long division to find the quotient and check.
A. 103 R 5 B. 100 C. 103 R 60 D. 100 R 49
Mathematics