Answer:
[tex]y^{6}[/tex]
Step-by-step explanation:
Using the rules of exponents
[tex]a^{m}[/tex] × [tex]x^{n}[/tex] ⇔ [tex]a^{(m+n)}[/tex]
[tex]\frac{a^{m} }{a^{n} }[/tex] ⇔ [tex]a^{(m-n)}[/tex] , then
[tex]\frac{y^4 y^7}{^5}[/tex]
= [tex]\frac{y^{(4+7)} }{y^5}[/tex]
= [tex]\frac{y^{11} }{y^5}[/tex]
= [tex]y^{(11-5)}[/tex]
= [tex]y^{6}[/tex]
