Hey there!!
General formula:
We have:
... (a-b)(a-b)
This could be written as (a-b)²
Hence, the answer is :
<em>... (a-b)² or a²-2ab+b² </em>
<em>Hope my answer helps!</em>
Answer with Step-by-step explanation:
We are given that A and B are two countable sets
We have to show that if A and B are countable then 
is countable.
Countable means finite set or countably infinite.
Case 1: If A and B are two finite sets
Suppose A={1} and B={2}
={1,2}=Finite=Countable
Hence, is countable.
Case 2: If A finite and B is countably infinite
Suppose, A={1,2,3}
B=N={1,2,3,...}
Then, ={1,2,3,....}=N
Hence, is countable.
Case 3:If A is countably infinite and B is finite set.
Suppose , A=Z={..,-2,-1,0,1,2,....}
B={-2,-3}
=Z=Countable
Hence, countable.
Case 4:If A and B are both countably infinite sets.
Suppose A=N and B=Z
Then,=
=Z
Hence, is countable.
Therefore, if A and B are countable sets, then is also countable.
Answer:
Hi there, I like your pfp!
The correct answer should be 11 1/2!
Step-by-step explanation:
-48/-8 = 6 4/8 = 6 1/2
6 1/2 + 5 =
11 1/2
Anyways, hope this helped!
Answer:
- The equation is: x = (y - $4) / g
Where x is the number of games you can play;
y is the amount you have
and g is the cost of each game
- You can play only 2 games
Step-by-step explanation:
From the question, you have $10 to go bowling and you need to rent shoes for $4. Hence, after renting the shoes, you will have $10 - $4 left, that is you will have $6 left. To determine the number of games you can play, that will be the amount you have left after renting shoes divided by the cost of each game.
Let the number of games you can play be x games
and the amount you have be y
and the cost of each game be g
Hence,
x = (y - $4) / g
From the question,
y = $10
and g = $3
∴ x = ($10 - $4)/ $3
x = $6 / $3
x = 2
Hence, you can play only 2 games
<h2>Solving Equations with Absolute Values</h2><h3>
Answer:</h3>
and 
<h3>
Step-by-step explanation:</h3>
Solving for the Positive Absolute Value:
Solving for the Negative Absolute Value:
