Question

7 squared + x squared = 14 squared

Answer 1

Answer:

x = 12.1243557....

Step-by-step explanation:

14² = 7² + x²

Isolate x.

x² = 14² - 7²

x² = 196 - 49 = 147

√x² = √147

x = √147 = 12.1243557....

Answer 2

Answer:

12.1 rounded to the nearest tenth.

Step-by-step explanation:

$7^{2} +x^{2} = 14^{2}$       $7^{2}$ means 7x7 = 49; $14^{2}$ means 14x14 = 196

49 + $x^{2}$ = 196       Subtract 49 from both sides of the equation

$x^{2}$ = 147

$\sqrt{x^{2} }$ =$\sqrt{147}$

x = $\sqrt{147}$      This would be the exact answer.

12.1   is your answer rounded to the nearest tenth