Question

NEED HELP ASAP algebra 2​

Answer 1

`√(39)`

Explanation:

Step 1: Find the unknown wide using Pythagorean Theorem

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

`a^(2)+ 5^(2) = 8^(2)`

`a^(2)+ 25 = 64`

`a^(2)= 64-25`

`a^{2=39`

`\sqrt{a^(2)} = √(39)`

`a=√(39)`

`√(39)` cannot be simplified and more

Therefore the unknown side is
`√(39)`

Answer 2

b = sqrt(39)

Explanation:

Since this is a right triangle, we can use the Pythagorean theorem

a^2+b^2 = c^2

5^2 + b^2 = 8^2

25+b^2 =64

b^2 =64-25

b^2 =39

Take the square root of each side

b = sqrt(39)