Answer:
≈ 3.16 units
Step-by-step explanation:
To determine the distance between the two points, we need to use the distance formula. The distance formula states that;

Given coordinates;
When we substitute the coordinates into the formula, we get;
When we simplify the root, we get;
![\implies \sqrt{[-1]^{2} + [-8 + 5]^{2} }](https://tex.z-dn.net/?f=%5Cimplies%20%5Csqrt%7B%5B-1%5D%5E%7B2%7D%20%2B%20%5B-8%20%2B%205%5D%5E%7B2%7D%20%20%7D)
![\implies \sqrt{[-1]^{2} + [-3]^{2} }](https://tex.z-dn.net/?f=%5Cimplies%20%5Csqrt%7B%5B-1%5D%5E%7B2%7D%20%2B%20%5B-3%5D%5E%7B2%7D%20%20%7D)

units ≈ 3.16 units (Using calculator)
Therefore, the distance between the points is about 3.16 units.
It is not proportional because 3 should be 45, since it is 3x15
Answer:
There will be 90 ways to reach Greenup from Charleston.
Step-by-step explanation:
<em>Option C: 90 is correct.</em>
Let's name all the ways and try to visualize the roads.
C = Charleston
M = Mattoon
T = Toledo
G = Greenup
Task = Charleston to Greenup. How many different ways to reach?
1 1
2 2 1
C 3 M 3 T 2 G
4 4 3
5 5
6
So, Refer to this above diagram.
If we Start from C then go to 1 and then go to M and then go to 1 and then go to T and then go to 1 and then go G.
If you notice, in this single possibility we have 3 ways: C to 1 to M, M to 1 to T, T to 1 to G.
It means we will have: 5 x 6 x 3 = 90 number of ways to reach greenup from Charleston.
You can double the product of 9 and 4 to get to the product of 9 and 8