Respuesta :

Answer:

[tex]9^{9}[/tex]

Step-by-step explanation:

Using the rule of exponents

[tex]a^{m}[/tex] × [tex]a^{n}[/tex] ⇔ [tex]a^{(m+n)}[/tex]

Given

[tex]9^{-3}[/tex] × [tex]9^{12}[/tex]

= [tex]9^{(-3+12)}[/tex]

= [tex]9^{9}[/tex]

Answer:

9^-15

Step-by-step explanation:

got it right on khan