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Which of the following numbers are square roots of 100? check all that apply .. a. -10 b. -50 c. 10 d. 50
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Which of the following numbers are square roots of 100? check all that apply .. a. -10 b. -50 c. 10 d. 50
asked
Nov 16, 2015
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Which of the following numbers are square roots of 100?
check all that apply ..
a. -10
b. -50
c. 10
d. 50
Mathematics
high-school
Mustard
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Well think what number when multiplied by itself = 100.
50x50=2500 so it has to be 10.
However, -x-=+ so -10x-10 is also 100.
Therefore 10 and -10 are the square roots of 100, so a and c.
Prasann
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Nov 18, 2015
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El
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Nov 19, 2015
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