can someone please help me out with this problem ? i been trying to do this for like 2 days now and i still don’t get it .. also

Question

3 years ago

10

i need some tips on how i can remember this when im doing a different problem

1 answer:

kotykmax [81] · Answer 1 · 2022-09-16T21:22:28+03:00

Answer:

Step-by-step explanation:

the Pythagorean theorem is

c is the hypotenuse which is the side opposite of the right angle

plug the numbers into the Pythagorean theorem

$x^2+(\sqrt{26})^2=13^2$

when squaring a square root, just take the number in the radical and get rid of the radical

$x^2+26=169$

subtract 26 from both sides

$x^2=$ $143$

find the square root of 143

143 is prime so it can just be written as

$x=\sqrt{143}$