2980 round everything to the nearest tens and add with your head to get it
Answer:
right angle triangle
Step-by-step explanation:
2x+3x-10+110-x
4x/4x =80/4x
x=20°
A=40°
B=50°
C=90°
S + (3s)+(s+4) =0
I’d assume this is the answer based on information given
Answer:
x=6
Step-by-step explanation:
Given the x-intercepts of a parabola: 
The equation of symmetry at the parabola's vertex is x=h
Where 
In this case,

Therefore, the line of symmetry of the parabola is x=6 and is also the x-coordinate of the parabola's vertex.