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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Refer to the figure and provide an appropriate name for the indicated angles. 
?3 and ?7
A. Complementary angles B. Alternate interior angles C. Supplementary angles D. Alternate exterior angles
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Provide an appropriate response.Find the complement of 1.2%.
Fill in the blank(s) with the appropriate word(s).
Mathematics
Find an equation for the ellipse described.Focus at (0, -3); vertices at (0, -6) and (0, 6)
A. 
+ 
= 1
B. 
+ 
= 1
C. 
+ 
= 1
D. 
+ 
= 1
Mathematics
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
Mathematics