Question

Can you please help, i have a test tomorrow and i know nothing

Answer 1

Check the picture below.

`\begin{array}{llll} \textit{using the pythagorean theorem} \\\\ c^2=a^2+o^2\implies c=√(a^2 + o^2) \end{array} \qquad \begin{cases} c=\stackrel{hypotenuse}{x}\\ a=\stackrel{adjacent}{4}\\ o=\stackrel{opposite}{5.4} \end{cases} \\\\\\ x=√( 4^2 + 5.4^2)\implies x=√( 16 + 29.16 ) \implies x=√( 45.16 )\implies x\approx 6.7`