3.(3×10-⁷)×(9×10³)=ka di jawab secepatnya​

notasi ilmiah

(3 × 10^-7) × (9 × 10^3)

= 27 × 10^(-7 + 3)

= 2,7 × 10 × 10^-4

= 2,7 × 10^(1 + (-4))

= 2,7 × 10^–3

^ baca pangkat