Question

find the value of x ​

Answer 1

Answer:

The First and second workings are the same. Please mark me a brainiest. Thanks! :)

Step-by-step explanation:

a^2 + b^2 = c^2

a =x, b=3, c=12

x^2+3^2=12^2

x^2 = 144-9

x^2 = 135

x = root 135

x=11.618950038622 approx. 11.6

$a^2 + b^2 = c^2\\a =x, b=3, c=12x^2\\12x^2-3^2=x^2 =\\ 144-9x^2 = 135\\\\x = \sqrt{135} \\\\x = 11.6$