Question - Converting Scientific Notation to Decimal Form
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Solution:
The expression in the image shows a number written in scientific notation: $$4.2 \times 10^{-5}$$.To solve this expression (or to write it in standard decimal form), you simply have to move the decimal point 5 places to the left, since the exponent on the 10 is -5. When you move the decimal point to the left, you add zeroes as placeholders if needed.Here's how to do that step by step:4.2→ 0.42 (1 place)→ 0.042 (2 places)→ 0.0042 (3 places)→ 0.00042 (4 places)→ 0.000042 (5 places)So, $$4.2 \times 10^{-5}$$ is equal to 0.000042 in standard decimal form.
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