Use Cramer's rule to solve the system of linear equations.0.4x + 0.7y = -4  x - 0.7y = -0.2

A. No Solution
B. (-0.3, -0.4)
C. (-3, -4)
D. (-4, -3)


Answer: C

Mathematics

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A. Deductive B. Inductive

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Solve the logarithmic equation.log2(6x - 3) = 2

A.
B.
C.
D. 1

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Evaluate.7x2 + 6x + 3, for x = -2

A. 9 B. 19 C. 15 D. -23

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Tell whether the expression is a polynomial. If it is, give its degree.7x4 - 3

A. Polynomial; degree 3 B. Polynomial; degree 7 C. Polynomial; degree 4 D. Not a polynomial

Mathematics