Question

I need help ASAP please (radical expressions)

Answer 1

A. I only

Explanation:

We need to start off by taking perfect squares out of these square roots.

Begin with the numerator. It looks like we can take 4 out of the radical:
`√(40) = √(4*10) = √(4) * √(10) = 2 √(10)`

Now we have

`(2√(10))/(√(10) )`

Looks like those
`√(10)`s can cancel!

= 2

Plug those answers into your calculator. II and III don't equal 2, but I does. This makes sense when we consider the rule that if you're dividing two radicals, you can just pull the radical over the whole expression!

The answer is A. I only.