Solve the linear equation.
+ 
= 
A. {1}
B. {18}
C. 
D. {0}
Answer: A
Mathematics
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Express the number in scientific notation.8,200,000,000,000
A. 8.2 × 10-9 B. 8.2 × 10-12 C. 8.2 × 1012 D. 8.2 × 109
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Factor completely, if possible.9 - 6z - 8z2
A. (3 - 2z)(3 + 4z) B. (9 + 2z)(1 - 4z) C. (3 + 2z)(3 - 4z) D. (9 + z)(1 - 8z)
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Solve the equation by expressing each side as a power of the same base and then equating exponents.3(1 + 2x) = 243
A. {81} B. {-2} C. {2} D. {6}
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Tell whether the equation determines y to be a function of x.y = 8.5x + 10
A. no B. yes
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