(8.5×10^-5 ) × (6.4 × 10^8)
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Answer:
5.44 × 10^4
Step-by-step explanation:
(8.5×10^-5 ) × (6.4 × 10^8)
=> (8.5×6.4)×(10^-5 × 10^8)
=> (54.4) × (10^(-5+8))
=> 5.44 × 10 × 10^3
=> 5.44 × 10^4
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