There are 7 red 3 green 2 blue and 8 purple marbles in a bag if a marble is randomly chosen 250 times predict how many times it
1 answer:
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Answer: √20 is between 4.47 and 4.48
Step-by-step explanation: Square roots of numbers between perfect squares are irrational numbers. 16 and 25 are squares of 4 and 5, so the irrational number we are looking for must be about halfway between 16 and 25.
is more than 4.47 and less than 4.48
This shows that is true when
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- Note 1: A more general solution is
for some constant C.
- Note 2: It might be tempting to say the general solution is
, but that is not the case because
and we can see that
would only be true for C = 0, so that is why