4x+60+ x+15=180
5x+75=180
5x=105
x=21
Two linear angles are supplementary thereom
312-170=142
142÷2=71
170+71=241
241+71=312
train A weighs 241 tons
First you write what the vectors are, then you subtract z from w by subtracting their corresponding values <-4-3,1-4>= <-7,-3>, then to get subtracting the next answer you subtract w from z which is <3--4,4-1> = <7,3>
Decimeters
plz tell me if im wrong
The formula is Opposite/Hypotenuse