Mathematics
25 Online
OpenStudy (anonymous):
Which is an irrational number?
A.
B.
C.
D.
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OpenStudy (brunsonni):
I can't see the numbers.
OpenStudy (anonymous):
\[a.\sqrt{1}\]
\[b.\sqrt{49}\]
\[c.\sqrt{9}\]
\[d.\sqrt{80}\]
OpenStudy (anonymous):
sorry, it wouldnt let me do it w/o using the commands
geerky42 (geerky42):
Well, which number in square root is NOT square number?
OpenStudy (anonymous):
-.-
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OpenStudy (anonymous):
i like kittens, not math
OpenStudy (anonymous):
I believe its d
OpenStudy (anonymous):
do you also believe that it is d @geerky42 ?
geerky42 (geerky42):
Why not A?
OpenStudy (anonymous):
is it a?
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OpenStudy (anonymous):
Its between a or d
OpenStudy (anonymous):
T.T
OpenStudy (anonymous):
Sorry i think its a
geerky42 (geerky42):
Com'on this is easy, really...
is 1 a square number? Yes or no?
OpenStudy (anonymous):
no its not thats why its a
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geerky42 (geerky42):
Really? strange, because \(1^2 = 1\)
geerky42 (geerky42):
or \(1\times1 = 1\)
So 1 is square number.
So \(\sqrt{1}=1\), which is not irrational number.
Do same and check for B or C.
geerky42 (geerky42):
You can do that yourself.
OpenStudy (anonymous):
thats what i just read cause the sqr root of 2 is irrational so the sqr root of 1 cant be irrational too
OpenStudy (anonymous):
so yea its d
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OpenStudy (anonymous):
im sorry that these people are making it hard for you to understand, but the answer is d
OpenStudy (anonymous):
hes right
OpenStudy (anonymous):
kk thanks ^_^
OpenStudy (anonymous):
np