Write 4 500 000 in standard form (scientific notation).
Answer and explanation
Correct answer: C. 4.5 x 10 to the power 6, with the point moved six places
- Step 1: Move the decimal point so that the number is between 1 and 10: 4.5. Step 2. The point moved six places, so the power is 6. Answer: 4.5 x 10 to the power 6. Why not the others: 45 x 10^5 and 0.45 x 10^7 are equal in value but not in standard form; 4.5 x 10^5 is only 450 000.
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