Answer: 9
Step-by-step explanation: To simplify [tex]81^{1/2}[/tex], it's important to understand that an exponent of 1/2 means that we take the square root of the base. In other words, [tex]81^{1/2}[/tex] means the same thing as the square root of 81 and the square root of 81 is 9.
So [tex]81^{1/2}[/tex] is 9.
