A baseball hat for $22.90 at 5% sales tax
2 answers:
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Answer:
Step-by-step explanation:
The are of a square is so 9 root 2 is
since the formula says that a need to be squared so we need to square 9 root 2
which would be
or another way would be to turn 9 root 2 into a decimal
then you would square that number just like we did in the first example
which would give you
then all you have to do is round to the nearest tent then you would get
as an answer
i would agree that this step requires to much work so just stick with the first way to do it.
thank you for waiting for this answers i hope it helps a lot i went into details to make sure that you understand if you still don't get it just post another question ill be more than happy to help you out.
Make a substitution:
Then the system becomes
Simplifying the equations gives
which is to say,
Substituting this into the new system gives
Then
(meaning two solutions are (7, 13) and (-7, -13))