20. This is what you were looking for right?
Given
formula for the perimeter of a rectangle = 2 ( l + w)
where l represents the length and w represents the width.
What does the 2 represent in this formula
To proof
As given in the question
Formula for the perimeter of a rectangle = 2 ( l + w)
where l = length , w = width
Perimeter of a rectangle is equal to the sum lengths of all the four sides.
Rectangle consisted of four sides.
Rectangle opposite sides are of equal length.
The diagram of rectangle given below.
option (D) is correct.
Therefore 2 represents the two sets of length and width pairs.
Hence proved
Answer:
B
Step-by-step explanation:
The answer is B (OB. Fifty people are put into a control group and nfty people are put into a test group. The control group is given a placebo and the
test group is given a new medication. Each group is asked about the side effects.) because an experiment requires a control group and a test group chosen at random.
Answer:
at matilda's new job, she will make a rounded salary of $69,000 per year.
Step-by-step explanation:
when solving a problem like this, you have to take her current salary ($64,000 per year) and multiply it to the salary increase percentage by first turning the percentage into a decimal. to turn the percentage into a decimal, you imagine a tiny dot to the right of the 8 like this:
8.
and then you have to move that little dot to the left two times recreating it into .08. you multiply .08 (the salary increase percentage) by her current salary ($64,000) and then also add that number to matilda's current salary to come up with the answer you can round. I'll give you an example of my proscess just so I can give a clear visual of my explanation.
step one:
$64,000
x .08
-------------
5,120
step 2:
$64,000
+$5,120
-------------
$69,120
step 3:
$69,120 is rounded up to the nearest thousands is approximately $69,000
answer: $69,000