Question

01 Determine a medida de x em cada relação.




Alguém me ajuda por favorrrr​

Answer 1

$\Large\boxed{\begin{array}{l}\rm a)\\\sf x^2=25\cdot 16\\\sf x=\sqrt{25\cdot16}\\\sf x=\sqrt{25}\cdot\sqrt{16}\\\sf x=5\cdot4\\\sf x=20\\\rm b)\\\sf x^2=9\cdot4\\\sf x=\sqrt{9\cdot4}\\\sf x=\sqrt{9}\cdot\sqrt{4}\\\sf x=3\cdot2\\\sf x=6\\\rm c)\\\sf 5\cdot x=4\cdot3\\\sf 5x=12\\\sf x=\dfrac{12}{5}\\\\\rm d)\\\sf x^2=4\cdot16\\\sf x=\sqrt{4\cdot16}\\\sf x=\sqrt{4}\cdot\sqrt{16}\\\sf x=2\cdot4\\\sf x=8\end{array}}$