\cos \left(\frac{5}{6}x+1.1\right)+27.89111=-0.1\left(x-13.75\right)^2+28.89108
You asked:
Solve the equation \(\cos\left( \frac{5}{6} \cdot x + 1.1 \right) + 27.89111 = -\left( 0.1 \cdot {\left( x - 13.75 \right)}^{2} \right) + 28.89108\) for the variable \(x\).