Solve using the addition and multiplication principles together.
a - 
= -5
A. -21
B. 19
C. -19
D. 21
Answer: C
Mathematics
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Determine whether the lines are parallel, perpendicular, or neither.16x - 4y + 2 = 0 and 18x - 6y + 9 = 0
A. Perpendicular B. Parallel C. Neither
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Express the number in decimal notation.4.14 × 10-4
A. 0.0000414 B. -414,000 C. 0.000414 D. 0.00414
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Provide an appropriate response.In solving a system of three equations in three variables, the final step yields the following equation:0 = 5. How many solutions does this system have? Explain geometrically.
What will be an ideal response?
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Multiply.55 × 0.4
A. 23.1 B. 55.4 C. 22 D. 22.11
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