#6 plz help me with this question

Option D. 90°

Step-by-step explanation:

The sum of angles in a triangle = 180°

3x + (x — 15) + (2x + 15) = 180

Clear the bracket

3x + x — 15 + 2x + 15 = 180

6x = 180

Divide both side by 6

x = 180/6 = 30

Substituting the value of, we have:

3x = 3 x 30 = 90

x — 15 = 30 — 15 = 15

2x + 15 = 2(30) + 15 = 60 + 15 = 75

The greatest angle is 90°

domain is all the x values included in the

0 ≤ x ≤ 2

range is all the y values of the graph

-2 ≤ y ≤ 2

***keep in mind that there are different ways to show domain and range

hope this !

~just a girl in love with shawn mendes

check above link.

graphically?   well, you graph them both, the solutions is where they both intersect each other, since there are two solutions, meaning they will meet twice, or namely the linear will run into the quadratic curve twice, and where they meet, those x,y coordinates are the solutions to the system.