Use Cramer's rule to solve the system of equations. If D = 0, use another method to determine the solution set.-3x - 7y - 6z = -65 5x + 9y - 5z = 43 9x - 9y + 8z = 95
A. {(10, 0, 4)}
B. {(2, 4, 2)}
C. {(9, -2, -4)}
D. {(9, 2, 4)}
Answer: D
Mathematics
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÷ 1
A. 1
B. 1
C. 2
D. 1
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Solve.Inga read 
of her book on Monday, 
of her book on Tuesday, and 
of her book on Wednesday. What part of her book has she read?
A. 
B. 
C. 
D. 
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Factor the expression. Express your answer so that only positive exponents occur. x7/4 - x1/4
A. x1/4(x3/2) B. x1/4(x3/2 - 1) C. x1/4(x3/2 + 1) D. x1/4(x3/2 - x)
Mathematics
Factor the polynomial.6z2 + 5z - 6
A. (3z + 2)(2z - 3) B. (3z - 2)(2z + 3) C. (6z - 2)(z + 3) D. prime
Mathematics