Use Cramer's rule to solve the system. If D = 0, use another method to complete the solution.2x + 4y + 10z = 69x + 2y + 5z = -23x + y + z = -3
A. {(-3, -1, -4)}
B. {(-1, -4, -3)}
C. {(-3, -4, -1)}
D. ?
Answer: D
Mathematics
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A. 
B. 3
C. 
D. - 
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A. prime B. (8y - 4)(y + 5) C. 4(2y - 1)(y + 5) D. 4(2y + 1)(y - 5)
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Use mathematical induction to prove the statement is true for all positive integers n.3 + 8 + 13 + . . . + (5n - 2) = 
(5n + 1)
What will be an ideal response?
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Use the reference angle to find the exact value of the expression. Do not use a calculator.tan 
A. 
B. -1
C. 
D. 1
Mathematics