Write the number in scientific notation.1,071,000,000,000,000,000
A. 1.071 × 1018
B. 1.071 × 10-18
C. 1071 × 1015
D. 1071 × 10-15
Answer: A
Mathematics
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A. cos x B. -sin x C. -cos x D. sin x - cos x
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Solve the equation.
- 
= 
A. -9
B. -27
C. 9
D. 
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Write the answer to the problem as an algebraic expression.Elizabeth earned 17 dollars a day at her job. Assuming a 5-day work week, how much did she earn in s weeks?
A. (85 + s) dollars B. 85s dollars C. (17 + s) dollars D. 17s dollars
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Add.8123
A. 131 B. 121 C. 110 D. 120
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