The value of b is -21. To find the slope of the line use the slope formula:
. The slope is -4. Then you plug in one coordinate to find the value of b.
Answer:
A = 110.25
Step-by-step explanation:
add all the equations and equal it to 180 because all triangle angles add to 180:
4x+1 + 3x + 3x-1 = 180
10x =70
/10 /10
x = 7
Insert x into each equation and solve:
3(7)-1 = 20
4(7)-1 = 27
3(7) = 21
and then use A = 1/2 base*height formula:
A= 1/2 21* 20
A= 210
Answer:
An acute triangle
Step-by-step explanation:
All of the angles are less than 90 degrees
It. Mean it 2 of 1\2 example 1\2 1\2
