Respuesta :

[tex] \bf (2.5\times 10^{-8})(9\times 10^{-10})\implies (2.5\cdot 9)\times (10^{-8}\cdot 10^{-10})
\\\\\\
(22.5)\times (10^{-8-10})\implies (2.25\times 10^1)\times 10^{-18}
\\\\\\
2.25\times 10^{1-18}\implies 2.25\times 10^{-17} [/tex]

Haydgirl11

Answer:

2.25×10^−17

Step-by-step explanation: