Solve the system by substitution. If the system is inconsistent or dependent, say so.
A. (-5, -4)
B. (-4, -5)
C. (4, -4)
D. empty set solution; inconsistent system
Answer: B
Mathematics
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A. y = 
x - 
B. y = 
x - 
C. y = - 
x + 13
D. y = - 
x + 
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Determine the accuracy of the measurement; that is, give the number of significant digits for the measurement.
m
A. 3 B. 4 C. 2 D. 6 E. 5
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For problems 12-14 evaluate the infinite geometric series.
A. 24 B. 30 C. 15 D. 3 E. None of these
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Divide. Write the answer in lowest terms.
÷ 
A. 
B. 
C. 
D. - 
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