Answer:
The solution is:
Step-by-step explanation:
The Gauss-Jordan elimination method is done by transforming the system's augmented matrix into reduced row-echelon form by means of row operations.
We have the following system:
This system has the following augmented matrix:
To make the reductions easier, i am going to swap the first two lines. So
Now the matrix is:
Now we reduce the first row, doing the following operations
So, the matrix is:
Now we divide L2 by 3
So we have
Now we have:
So, now we have our row reduced matrix:
We start from the bottom line, where we have:
At second line:
At the first line
The solution is:
Answer:
The number pi relates the diameter of a circle to the circumstance.- D.
You can use keep it change it flip it and do:
7/10•9/5=63/50= 1 3/50
7•9=63
10•5=50
Hope this helped
Answer:
Step-by-step explanation:
it is all of the side lengths of the four sides times how many trapezoids there are
Answer:
Step-by-step explanation:
let's call B the event that a woman was wearing a belt and C the event that a woman was carrying a purse.
The probability P(B/C) that a woman was wearing a belt, given that the woman was also carrying a purse can be calculated as:
P(B/C) = P(B∩C)/P(C)
Where P(C) is the probability that a woman was carrying purse and P(B∩C) is the probability that the woman was both carrying purse and wearing belt.
So, P(C) is calculated as:
P(C) = 18 / 30 = 0.6
Because there were 30 women that walked by in an hour and of those women, 18 were carrying purses.
At the same way, P(B∩C) is equal to:
P(B∩C) = 6 / 30 = 0.2
Finally, P(B/C) is equal to:
P(B/C) = 0.2/0.6 = 0.3333