How do you simplify $(0.10 x 10^5)(4.9 x 10^-2)$ ?

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Answer 1 · 2015-03-27T23:04:29

It is easiest if you multiply the coefficients together and then the exponents (and finally normalize).

$(0.10xx10^5)(4.9xx10^(-2))$

$= (0.10 xx 4.9) (10^5xx10^(-2))$

$= 0.49 xx 10^3$

$= 4.9 xx 10^2$

How do you simplify (0.10 x 10^5)(4.9 x 10^-2)(0.10 x 10^5)(4.9 x 10^-2)?