Final answer:
The quotient can be simplified to √5.
Step-by-step explanation:
The quotient √45/√9 can be simplified by using the property of square roots that states that √(a/b) equals to the square root of a divided by the square root of b. Applying this property to the given quotient, we have √45/√9 = √(45/9) = √5. Therefore, the choice equivalent to the quotient is A. √5.
Learn more about Simplifying square roots