Answer:
19xy + 16z
Step-by-step explanation:
combine like terms
7xy +1 2xy= 19xy
8z - 2z + 10z = 16z
Answer:
12 ÷ 5
Step-by-step explanation:
Option B. 55° is the correct answer
Step-by-step explanation:
"The sum of interior angles of a triangle is always 180°"
Given
m∠A=(3x+1)°
m∠B=(2x-1)°
m∠C = 40°
We know that
m∠A+m∠B+m∠C=180°
Putting the values of angles

Subtracting 40 from both sides

Dividing both sides by 5

We have to find Angle B,
So
m∠B = 2x-1 = 2(28)-1 = 56-1 = 55°
Hence,
m∠B=55°
Option B. 55° is the correct answer
Keywords: Triangle, Interior angles
Learn more about triangles at:
#learnwithBrainly
Answer:
7-7i
Step-by-step explanation: