The angle of a triangle are (x+15), (2x-20) and 2x. what are the actual angle measures of the triangle?

Okay so here's what you do,

Add them,



Collect the like terms,

2x + x +2x = 5x



Calculate the sum / difference,

15 - 20 = - 5



Move constant to the right side and change its sign,



Calculate by adding,



Divide both sides of the equation by 5,







We're not done yet, x=37, now let's find out the measurements of each side.

To do this, simply substitute all expressions with x being 37,





Remember, a triangle always has 180° and do the measurements add up to 180??



Yes, they do meaning it's correct & reasonable!

- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

I hope that helps you out!!

Any more questions, please just ask me!!

~ Zoey

In all honesty, there really is no “work” per say to show. mainly it’s just using the process of elimination. the question is asking which domain(s) would be the most appropriate for the function c(n). n is the number of observed vehicles so right away, 1, 2, and 3 can be eliminated.why? 1, 2 start in the negatives and therefore it is impossible to observe negative cars. so, #4 would be the best answer to the given problem.