Rise over run! Y2-Y1/X2-X1
X can equal 2/4
a can equal 1/4
Or x can equal 1/4
and a can equal 2/4
Or x can equal -2/4
And a can equal 5/4
There's a series of values so just pick one set above unless you need the others.
Answer:
m∠TRI = 43
Step-by-step explanation:
m∠TRI + m∠IRB = m∠TRB
3x - 5 + x + 27 = 86
3x + x - 5 + 27 = 86 {Combine like terms}
4x + 22 = 86 {Subtract 22 from both sides}
4x = 86 - 22
4x = 64 {Divide both sides by 4}
x = 64/4
x = 16
m∠TRI = 3x - 5
= 3*16 - 5
= 48 - 5
= 43
