Answer:
Option D
Step-by-step explanation:
We are given the following equations -

It would be best to solve this equation in matrix form. Write down the coefficients of each terms, and reduce to " row echelon form " -
First, I swapped the first and third rows.
Leading coefficient of row 2 canceled.
The start value of row 3 was canceled.
Matrix rows 2 and 3 were swapped.
Leading coefficient in row 3 was canceled.

And at this point, I came to the conclusion that this system of equations had no solutions, considering it reduced to this -

The positioning of the zeros indicated that there was no solution!
<u><em>Hope that helps!</em></u>
Part one of your questions would be 1/20
Part two would be 1/20
Part three. Yes they are equal
Part four. None of them sense there equal
Answer:
pi x diameter
Step-by-step explanation:
To find the circumference of any given circle, multiply the radius by 2 to get the diameter, and then the diameter by pi (3.14)
Answer:
the area is 1800
Step-by-step explanation:
ik this doesn't answer the full question but hope it helps <3
Answer:
800 pencils
Step-by-step explanation:
because if 5students brought in a set of 8 box's with ten in it you get 80 times 5 you get 400 then you add the ten students that brought in a set of 40 each which is another 400 so400 +400= 800