Use the determinant feature of a graphing calculator to solve the system by Cramer's rule . (Round to one decimal place.)2.6x - 0.7y + 5.3z - 3.4w = 2.96.5y + 0.7w = -1.84.0z - 2.2w = 1.54.9x + 0.6w = 3.2
A. {(-0.5, -0.4, 1.1, 9.4)}
B. {(0.5, -0.4, 1.1, 1.3)}
C. {(0.5, 0.4, 1.1, -6.3)}
D. {(0.5, -0.4, -0.3, -1.3)}
Answer: B
Mathematics
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Factor the trinomial completely. If the polynomial cannot be factored, write "prime."-x2 - 4x + 96
A. -1(x + 12)(x - 8) B. -1(x - 12)(x + 8) C. -1(x - 12)(x - 8) D. -1(x - 12)(x + 1)
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Evaluate using substitution.
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Write the partial fraction decomposition of the rational expression.
A. 
+ 
+ 
B. 
+ 
+ 
C. 
+ 
+ 
D. 
+ 
+ 
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Simplify the expression by combining any like terms.10x - 6 + 2x + x + 1
A. 12x + 5 B. 12x - 5 C. 11x - 5 D. 13x - 5
Mathematics