Solve the system by substitution. If the system is inconsistent or dependent, say so.
A. (15, 1)
B. (0, -6)
C. infinite number of solutions of the equation -6x - 18y = -2; dependent system
D. empty set solution; inconsistent system
Answer: D
Mathematics
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Provide an appropriate response.
In the circuit represented by the diagram, find the total current It if Ic = 62 A. All units are in amps. 
A. 77.9 amps B. 47.2 amps C. 102.3 amps D. 49.3 amps
Mathematics
Simplify. Write the answer as a mixed number as needed.1
× 2 ÷ 
A. 1
B. 1
C. 7
D. 2
Mathematics
Find the square roots.64
A. 9, -9 B. 8, -8 C. 10, -10 D. 16, -16
Mathematics
Solve.
= 
A. 1
B. 
C. 
D. 
Mathematics