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Scientific Notation - video-solutions

# Scientific Notation - video-solutions - nanni(arn437...

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nanni (arn437) – Scientific Notation - video – CNS – (87654) 1 This print-out should have 5 questions. Multiple-choice questions may continue on the next column or page – find all choices before answering. 001 10.0points Express 0.0103240 in scientific notation. 1. 1 . 03240 × 10 2 2. 1 . 03240 × 10 - 2 correct 3. 1 . 03240 × 10 - 3 4. 1 . 0324 × 10 - 3 5. 1 . 0324 × 10 - 2 6. 1 . 0324 × 10 - 1 Explanation: The number is a fraction smaller than one, so the exponent is negative. The decimal must be moved 2 places, so the exponent on 10 must be - 2. 002 10.0points What is 0.00397 in scientific notation? 1. 3 . 97 × 10 - 3 correct 2. 3 . 97 × 10 5 3. 39 . 7 × 10 - 5 4. 3 . 97 × 10 3 Explanation: 0.00397 = 3 . 97 × 10 - 3 (move decimal 3 places to right) 003 10.0points What is 45,500,000,000 in scientific notation? 1. 4 . 55
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