Solve the system. If there is no solution or if the system's equations are dependent, so state.
A. infinitely many solutions; dependent equations
B. {(5, 1, -5)}
C. no solution or ?
D. {(5, -5, 1)}
Answer: D
Mathematics
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Find the probability.A couple has four children. Assuming that each child is equally likely to be a boy or a girl, find the probability that they have exactly three boys.
A. 
B. 
C. 
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Express the product as a sum or difference.sin 7x sin 4x
A. 
(cos 3x - cos 11x)
B. 
(cos 11x - cos 3x)
C. sin2 28x2
D. 
(sin 11x + cos 3x)
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Match the equation of a hyperbola with its description.
- 
= 1
A. center (-3, -1); horizontal transverse axis B. center (1, 3); vertical transverse axis C. center (-1, -3); horizontal transverse axis D. center (3, 1); vertical transverse axis
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Graph.y =log8x
A. 
B. 
C. 
D. 
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