Question

I need to find an equation with the pythagorean theorem. then I need to solve the equation and get an answer

Answer 1

We have a right triangle.

We can write the Pythagorean theorem as:

`x^2+3.9^2=11^2`

We add the square of the legs and that is equal to the square of the hypotenuse.

Then, we can rearrange to solve for x as:

`\begin{gathered} x^2+3.9^2=11^2 \\ x^2=11^2-3.9^2 \\ x^2=121-15.21 \\ x^2=105.79 \\ x=\sqrt[]{105.79} \\ x\approx10.3 \end{gathered}`

Answer:

We can write the Pythagorean theorem as x^2+3.9^2=11^2.

The value of x is approximately 10.3.