Rotate the shape about its central axis by making it stationary.
The two horizontal lines are parallel ( This is given by the red triangles)
Because the lines are parallel, the two angles 1 & 2 would be the same.
Set the two equations for the angle to equal each other and solve:
8y-6 = 7y
Add 6 to each side:
8y = 7y+6
Subtract 7y from each side:
y = 6
Now you have the value for y, solve for angle 2 by replacing y with 6:
Angle 2 = 7y = 7(6) = 42 degrees.
Answer:
Step-by-step explanation:

Answer:
c = 24
Step-by-step explanation:
Angle c is supplementary to 146 and their sum is 180
c + 146 = 180 subtract 146 from both sides
c = 34
The amount of cooper that are contained in 120 pounds of the brass is equal to 78 pounds.
- Let the amount of copper be C.
<u>Given the following data:</u>
- Quantity of brass = 120 pounds
- Percentage of copper = 65%
To calculate the amount of cooper that are contained in 120 pounds of the brass:
In this this exercise, you're required to determined how many pounds of copper can be found in 120 pounds of the brass. Thus, we would solve for the percentage of copper contained in this type of brass.

Copper, C = 78 pounds
Read more: brainly.com/question/16068904