Answer:
110 km
Step-by-step explanation:
He walks 22 km every day, for 5 days
d = (km in one day) * (days)
d = 22 * 5
d = 110
First, use distributive property to expand whats in the brackets
second, isolate x by putting all terms with x on one side
divide both sides by -11.81 to have x on its own.
Six thirty-five...............................
cos (arctan (1))=
arctan (1) = 45 take it to the third quadrant = add 180 = 225
cos (225) = -1 / sqrt(2)
never leave a sqrt in the denominator
= -1 /sqrt(2) * sqrt(2)/sqrt(2)
= -sqrt(2)/2
sin (arccos (1/2)
arccos (1/2) = 60 take it to the 4th quadrant -60 degrees
sin (-60)
- sin 60
- sqrt(3)/2