#7 is B!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
The answer to your question is 5 because 9 times 5 is 45.
Hope this helps:)
Answer: y= 3/5 + 18
Step-by-step explanation: Bruh i legit learned this a hour ago at my tuition, ok so basically simply to slope intercept from ye? so it would be y=-3/5x+7
and then you would use the distance formula and ye distance formula is square root of x sub 2 - x sub 1 squared+ y sub 2 - y sub 1 squared
The standard deviation of the frequency distribution is 5.54
<h3>How to determine standard deviation?</h3>
The table of values is given as:
x f(x)
0-3 13
4-7 13
8-11 10
12-15 11
16-19 0
20-23 3
Rewrite the table by calculating the class midpoints:
x f(x)
1.5 13
5.5 13
9.5 10
13.5 11
17.5 0
21.5 3
Start by calculating the mean using:

This gives

Evaluate

The standard deviation is then calculated as:

So, we have:

Evaluate

Solve

Hence, the standard deviation is 5.54
Read more about standard deviation at:
brainly.com/question/15858152
#SPJ1
Step-by-step explanation:
x²-3=0
x²=3
x=√3
<h2>stay safe healthy and happy.</h2>