Answer:
30%
Step-by-step explanation:
x% de 20 es 6.
x% * 20 = 6
0.01x * 20 = 6
0.2x = 6
x = 6/0.2
x = 30
Respuesta: 30%
Answer:
I think its the second one
Step-by-step explanation:
the other ones are fair and have a 50% chance on choosing.
- I am so srry if I'm wrong but I'm pretty confident.
Answer:
5 ft
Step-by-step explanation:
Since we have a rectangle, we know for sure that perimeter = double the width and double the height. Algebraically, that looks like:
P = 2W + 2H
Let's sub in the given values, P and W:
18 = 2(4) + 2H
Now, let's solve for the height, H:
18 = 8 + 2H
10 = 2H
10/2 = H
<u>5 = H</u>
I hope this helps!
1) Mean
The mean is given by the sum of the data divided by the number of data (4, in this case):

2) Standard deviation
The standard deviation is given by:

where

is the mean, that we already found at point 1), and N=4. Substituting data, we have:

The first one is 4
Second is 5/9
Third is 1/2
Fourth is 11