The correct option is C no, both 3.61^2 and 3,62^2 are greater than 13.
Is he correct? If not, what was his mistake?
To check this, we can just square both of the bounds that he found, and see if it makes sense.
Walter says hat:
3.61 < √13 < 3.62
Then we must have:
(3.61)^2 < 13 < (3.62)^2
The lower bound is 3.61, if we square it we get:
3.61*3.61 = (3 + 0.61)*(3 + 0.61) = 9 + 6*0.61 + 0.61*0.61 = 13.0321
Now, this is larger than 13, so the above inequality is false, which means that Walter is incorrect, because both 3.61 and 3.62 are larger than √13 , then the correct option is C.
If you want to learn more about square roots:
https://brainly.com/question/98314
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