Answer: 42
Step-by-step explanation:
Ok what you want to do is add all of them up and equal it to 180 because a triangle is 180 degrees .
Your equation should look like this
9x-3+22x+1+42-3x = 180
What you want to do first is combine all the x and numbers on the left side so it should look like this
1) 28x+40= 180
Then you want to subtract 40 on both sides so it will look like this
2)28x=140
You want to get x by it self so you divide 28 on both sides
3) x=140/28
4) x=5
Since you are finding c you have to insert 5 into x
1) 9(5)-3
2)45-3
Then your answer should be 42
Answer:
Step-by-step explanation:
Given that, a <em>regular octagon </em>is to be constructed.
To find:
Each angle in the octagon = ?
Solution:
We know that a regular triangle (polygon with 3 sides) has an interior angle of 
.
And a regular quadrilateral (square) has an interior angle of 
.
Therefore, formula for interior angle of a regular polygon with 
number of sides can be given as:
For an octagon, we have 
.
Value of Interior angle in a regular octagon:
Kindly refer to the attached image for the angle of
Answer:
Graph the equations
Step-by-step explanation:
x - y = 1
3x + 2y = - 12
Rewrite equations into y=mx+b form:
y = -1 + x
y = -6 - 1.5x
Graph it!
Answer:
38449
Step-by-step explanation:
29,035 + 3,028 + 4,562 + 2,846 = 39471
29471 - 1022 = 38449
