Question

4. 1.45 cm = . . . m
​

Answer 1

Jawab:
= 1,45 × 10⁻² m (notasi ilmiah)
atau = ²⁹/₂₀₀₀ m

Penjelasan dengan langkah-langkah:
n cm = n × 10⁻² m
maka 1,45 cm
= 1,45 × 10⁻² m (notasi ilmiah)
= (1 + (45 × 10⁻²)) × 10⁻² m
= (10⁻² × 1) + (10⁻² × 45 × 10⁻²) m
= 10⁻² + (45 × 10⁻⁴) m
= ¹/₁₀₀ + ⁴⁵/₁₀₀₀₀ m
= ¹⁰⁰/₁₀₀₀₀ + ⁴⁵/₁₀₀₀₀ m
= ¹⁴⁵/₁₀₀₀₀ m
 m
= ²⁹/₂₀₀₀ m

(Xcvi)

Answer 2

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1,45 cm

= 1,45 ÷ 100

= 0,0145 m

= 1,45 × 10-² m

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