Evaluate.log10 10,000
A. 
B. 4
C. 40
D. -4
Answer: B
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Solve using the addition principle.4.9 = x + 8.8
A. 3.9 B. 13.7 C. 0.56 D. -3.9
Solve the equation.x - 15
+ 54 = 0
A. {6, 9} B. {36, 81} C. {36} D. {-6, -9}
Use Cramer's rule to solve the system. If D = 0, use another method to complete the solution. x + y + z - w = 6 2x - y + 3z + 4w = -4 4x + 2y - z - w = -13 -x - 2y + 4z + 3w = 12
A. ?
B. {(-4, 3, 5, -2)}
C. 
D. {(4, -3, -5, 2)}
Eleven batteries are hooked in series to provide a 54-V power source. Some of the batteries are 9 V and some are 1.5 V. How many of each type are used?
A. 5 batteries of 1.5-V are used, 8 batteries of 9-V are used. B. 6 batteries of 1.5-V are used, 5 batteries of 9-V are used. C. 8 batteries of 9-V are used, 8 batteries of 1.5-V are used. D. 4 batteries of 9-V are used, 7 batteries of 1.5-V are used. E. 5 batteries of 9-V are used, 6 batteries of 1.5-V are used.