First we do brackets
(8900)-(1x89)
next we do the next bracket
8900-89
now we finish the equation
8811
We haven n! = (n-1)! x n and (n+1)! = n! x (n + 1);
Then, (n!)^2 = n! x n! = n! x (n-1)! x n;
And (n+1)!(n-1)! = n! x (n + 1) x (n-1)!;
Finally, [n! x (n-1)! x n] / [n! x (n + 1) x (n-1)!] = (n+1)/n;
Answer:
110%
Step-by-step explanation:
if each square is a whole, then when one is filled, it's 100% . 10% of the other square is filled so you just add the two.
Answer:
The answer is y = 2x - 3.
Step-by-step explanation:
Move 2x to the right side of the equation by adding it to both sides:
-2x + y + 3 = 0
<u>+ 2x + 2x</u>
y + 3 = 2x
Then, move 3 to the right side of the equation by subtracting it form both sides:
y + 3 = 2x
<u> - 3 - 3</u>
y = 2x - 3
