Answer:

Step-by-step explanation:
We want to find an expression that is equivalent to
.
Since we can;t get the options, we simplify the given expression.
The reason is that, the given expression will be equivalent to the simplified one.
We combine similar terms to get:

We now expand to get:

We perform the subtraction of the last two terms to get:

We now multiply to get:

Answer:
I have no idea..
Step-by-step explanation:
Answer:
a = 20.79cm ( 2 decimal places)
Step-by-step explanation:
find the length of the identical sides (i name it "x") first using Pythagoras theorem
= 
219.04 = 
= 219.04/2 = 109.52
x = 
now find a,
=
+ 
= 109.52 + 322.7477 = 432.2677
a =
= 20.791048
Answer:2 to 4%
Step-by-step explanation:
your odds are 1/30 then your persentage would be 3 percent so your range of 20 to 30 students would be 2 to 4 percent chances
Answer:
$324
Step-by-step explanation:
if
=> 1hr = $8
then,
=> 40.5 x 8 = 324
=> 40.5 hr = $324
She earned $324 this week.
hope this helps and is right :)