Question

1.Express in the form K x 10n

; ( 1≤ K < 10)



(2.5 x 1010 ) x (31.25 x 10 -5)



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Answer 1

Answer:

(2.5×1010) × ( 31.25 × 10 - 5)

2525×156.25=394,531.25

just we write 394,531,25×10^ -2

so, n= - 2 and k= 394,531,25