Provide an appropriate response.Suppose that you are solving a system of three linear equations and have evaluated D, Dx, Dy, and Dz. Under what condition does Cramer's rule not apply?

A. D = 0
B. D = 0; and either Dx = 0, Dy = 0, or Dz = 0
C. Dx = 0, Dy = 0, or Dz = 0
D. Dx = 0


Answer: A

Mathematics

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Fill in the blank(s) with the appropriate word(s).

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Find an equation for the ellipse described.Focus at (0, -3); vertices at (0, -6) and (0, 6)

A.  +  = 1
B.  +  = 1
C.  +  = 1
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Determine whether there is a maximum or minimum value for the given function, and find that value.f(x) = - 18x - x2 - 84

A. Maximum: 3 B. Maximum: -3 C. Minimum: 3 D. Minimum: 0

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