Question

NEED HELP ASAP algebra 2​

Answer 1

Answer:

b = sqrt(39)

Step-by-step 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)

Answer 2

Answer:

$\sqrt{39}$

Step-by-step explanation:

Step 1: Find the unknown wide using Pythagorean Theorem

$a^{2}+ b^{2} = c^{2}$

$a^{2}+ 5^{2} = 8^{2}$

$a^{2}+ 25 = 64$

$a^{2}= 64-25$

$a^{2=39$

$\sqrt{a^{2}} = \sqrt{39}$

$a=\sqrt{39}$

$\sqrt{39}$ cannot be simplified and more

Therefore the unknown side is $\sqrt{39}$