Answer:
5
Step-by-step explanation:
The grade on the west side would be the vertical rise divided by the horizontal run or 525 divided by 800' or rounded off to 66% (a steep grade as in an underground mine a grade of 25% is considered very steep for vehicles to go up or conveyors to travel). On the east side the 40% grade was obtained by dividing the 525' vertical height by the 1300' run.
Answer:
8
Step-by-step explanation:
-12u and 12u cancel each other out. Leaving 8 by itself.
Answer:
Your answer would be 19.
Step-by-step explanation:
7 + 9 = 16
16 + 3 = 19
The number of edges can be calculated from the number of vertices.
- <em>There are 14 vertices for 105 edges</em>
- <em>There are 200 vertices for 19900 edges</em>
The variable N is used to always represent the number of vertices.
So, we represent the edges as:
<u />
<u>(a) The value of N for 105 edges</u>
The relationship between N and E is:
Substitute 105 for E
Multiply through by 2
Rewrite as:
Expand
Factorize
Factor out N + 14
Solve for N
or
The number of vertices (N) cannot be negative. So:
<u>(b) The value of N for 19900 edges</u>
We have:
Substitute 19900 for E
Multiply through by 2
Rewrite as:
Expand
Factorize
Factor out N + 199
Solve for N
or
The number of vertices (N) cannot be negative. So:
<em>Hence, there are 200 vertices for 19900 edges</em>
Read more about vertices and edges at:
brainly.com/question/22118318