Final answer:
To rewrite 19² . 19³ using properties of exponents, you can add the exponents when multiplying two exponential quantities. So, 19² . 19³ is equivalent to 19 raised to the power of 5, or 19^5.
Step-by-step explanation:
To rewrite 19² . 19³ using properties of exponents, we can apply the rule of adding the exponents when multiplying two exponential quantities. So, 19² . 19³ can be rewritten as 19^(2+3) = 19^5. This means that 19² . 19³ is equivalent to 19 raised to the power of 5, or 19^5.