Question #2d197

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Answer 1 · 2017-08-31T10:10:18

$0.085 m$ $0.085m$

$100 c m = 1 m$ $100cm = 1m$

$1 c m = 0.01 m$ $1cm = 0.01m$

$0.01 \times 8.5 = 0.085 m$ $0.01 xx 8.5 = 0.085m$

Answer 2 · 2017-08-31T10:12:07

$8.5 \times 10^{- 2} m$ $8.5×10^(-2)m$

$= 0.085 m$ $= 0.085m$

As we know
$1 m = 100 c m$ $1m=100cm$ (unit conversion)

or we could say
$1 c m = 1 \times 10^{- 2} m$ $1cm= 1xx10^(-2)m$

multiply by $8.5$ $8.5$ to both L.H.S & R.H.S to get

$8.5 c m = 8.5 \times 10^{- 2} m$ $8.5cm= 8.5 xx10^(-2)m$