Question

Express the product of (2.3 × 10⁴) and (1.5 × 10⁻²) in standard form.

Answer 1

Answer:

1. Multiply fractions:
2.3 * 1.5 = 3.45

2. Now multiply them, by exponentiated 10:

3.45 * (
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3. And if we know, that 10 to the second power is 100, then we just move comma 2 places (because 2 zeros, or to the 2nd power.):

3.45 * 100 = 345 (Moved comma two times).

Hope this helps!