Answer:
C
Step-by-step explanation:
Mean: 9+6+18+2+13+3+5= 56/7 = 8
Median: 2,3,5,6,9,13,18 the middle number is 6
mode:none
5+5=10
15-5=10
5x2=10
20/2=10
10^1 (10 to the power of 1) or 0.1^-1 (0.1 to the power of -1)
Answer: No it is in correct the answer is actually -x3 + 2x + y
Step-by-step explanation:
Answer:
b
Step-by-step explanation:
I think so because its bigger than A but they both are x I'm pretty sure but b I think is the answer
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