Final answer:
A power with a positive base and a positive exponent that is less than the base is 5½, which is the square root of 5 and is approximately 2.236.
Step-by-step explanation:
To write a power with a positive base and a positive exponent whose value is less than the base, you can choose an exponent that is between 0 and 1.
For example, let's take the base 5 and use the exponent ½ (which is a positive exponent). The power is represented as 5½, which is equal to the square root of 5.
The square root of 5 is approximately 2.236, which is less than the base, which is 5. This fulfills the condition that the power is positive, the base is positive, and the value of the power is less than the base.