Question

Find the value of x to the nearest tenth

Answer 1

check the picture below.

Answer 2

`a {}^(2) + b {}^(2) = c {}^(2) \\ a {}^(2) = c {}^(2) - b {}^(2) \\ a = \sqrt{c {}^(2) - b {}^(2) } \\ a = \sqrt{6 ^(2) - 4 {}^(2) } = 4.47`
and because x=2a

`x = 2a \\ x = 2 * 4.47 = 8.94`