PLEASE PLEASE PLEASE HELP!! Tell me the work to, I’m having trouble.
1 answer:
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Answer:
the new frame is bigger than the original frame by 10%
Step-by-step explanation:
Let the length of the original frame be l,
then it's width is (10% of l)=×l
=
hence area of original frame=A=length×width
=
now the length of frame is enlarged by 10%
new lenght of frame=l+10%×l
=l+×l
=×l
width of new frame==
area of new frame=length×width
=
percent change=((area of new frame-area of old frame)×100)÷area of old frame
=10%
ANSWER
The correct answer is
EXPLANATION
The number
is a rational number.
Since the set of rational numbers is closed under addition, the number that should be added to
should also be a rational number in order to get another rational number.
This means that, if we add a rational number to an irrational number we get an irrational number.
The only rational number in the options provided is
We add it to
to get
Note that,
Hence the result is a rational number.
As for the remaining options,
are irrational numbers, so adding them to
will not produce a rational number.
The correct answer is
EXPLANATION
The number
is a rational number.
Since the set of rational numbers is closed under addition, the number that should be added to
should also be a rational number in order to get another rational number.
This means that, if we add a rational number to an irrational number we get an irrational number.
The only rational number in the options provided is
We add it to
to get
Note that,
Hence the result is a rational number.
As for the remaining options,
are irrational numbers, so adding them to
will not produce a rational number.