Use Cramer's rule to solve the system. 3x + 7z = 31 5x + 3y + 2z = 34-9x - 5y = -44
A. {(1, 7, 4)}
B. {(7, 4, 7)}
C. {(2, 5, 4)}
D. {(1, -7, -4)}
Answer: A
Mathematics
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A. none B. -8 C. -4 and 2 D. -2 and 4
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List the like terms of the expression.4x7 + 6x2 - 5 + 5x7 - 2x2 + 7x
A. 4x7 and 5x7 are like terms 6x2 and -2x2 are like terms B. 4x7 and 5x7 are like terms 6x2 and -2x2 are like terms - 5 and 7x are like terms C. 4x7, 6x2, 5x7 and -2x2 are like terms D. 4x7 and 5x7 are like terms 6x2, -2x2 , and 7x are like terms
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Solve the inequality, and graph the solution set.
? 0
A. 
? [2, ?)
B. 
C. 
D. 
? (2, ?)
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Rewrite without rational exponents, and simplify, if possible.m2/3
A. 
B. 
C. 
D. 
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