Answer:
x=3.414 and x=0.59 is the desired answer.
Step-by-step explanation:
We are given a quadratic equation as : 
on dividing both side by 2 we have the equation as

on solving for the roots of the equation using the quadratic formula we get that 
and 
x=2+1.414 and x=2-1.414
Hence , x=3.414 and x=0.586≈0.59.
First the person with a flashlight and one of his friends cross the bridge. After that same person with a flashlight comes back and leads another friend to the other side. Finally he comes back again and leads the last of them.
Number of times that he will have to cross the bridge is 5 ( five ).
Answer:
x=55°
Step-by-step explanation:
x=90-35
x=55°
(because its x+35=90°)
The answer to your question is 4.11 if I’m correct