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Does anyone know the correct answer

Does anyone know the correct answer-example-1
User VForce
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Answer:

D. None of these

Explanation:

(5×10^8)(4×10^3)

=20 × 10^11

All the terms are being multiplied. There is no distributive property (FOIL) here. Rearrange the numbers in any order that helps you.

5 × 4 × 10^8 × 10^3

Add exponents to multiply the 10's.

and in proper scientific notation, one last change would give you

2.0 × 10^12

User Matheuscscp
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