## Algebra and Trigonometry 10th Edition

$\frac{\sqrt{x^2-6x+10}}{4} + \frac{\sqrt{x^2+4}}{2}$
Find the time needed to walk. $T1=distance/speed=\sqrt{1^2+(x-3)^2}/4=\frac{\sqrt{x^2-6x+10}}{4}$ Find the time needed to row. $T2=distance/speed=\sqrt{2^2+(x)^2}/4=\frac{\sqrt{x^2+4}}{2}$ Find the total time of the trip. $T = T1+T2 =\frac{\sqrt{x^2-6x+10}}{4} + \frac{\sqrt{x^2+4}}{2}$