Question

Hey! can y’all help with this?

Answer 1

11

Explanation:

Answer 2

A)
`\sqrt21`

Explanation:

First you have to plug in the numbers into the Pythagreom Theroum:

`a^(2) +b^(2) =c^(2)`

`√(5) ^(2) +4^(2) =c^(2)`

(C represents you hypotnuse)

Then you square the numbers:

5 + 16 =
`c^(2)`

(If your confused why
`\sqrt5^(2)` just came out to be 5, the square and the square root cancel each other out)

Then you add the numbers:

21 =
`c^(2)`

Then you sqaure root both sides to cancel out the
`c^(2)`:

c =
`\sqrt21`