dyoung
whats the best integer estimate for the square root of -85
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godorovg
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can not do that. Square root can not be -85. srry
dyoung
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whats the closest estimate to it
dyoung
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?
godorovg
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there isn't one for this problem, the reason is -85 and take the square root of that it would I for the closest
dyoung
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my teacher gave me a worksheet im trying to do it at home the instructions say find the best integer estimate for each square root then check your estimate with a calcualator and the number is -85
godorovg
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sprt (-85) is what i come up with on my calac
godorovg
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well than let us break this down, sqrt of 81 is 9 and sqrt of 5 is 2.2360 with a - minus
dyoung
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k
dyoung
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since its an estimate thats an integer isnt 9 times 9 81 so wouldnt that be the closest estimate
godorovg
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yes that is right
dyoung
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how would i make iit negative
godorovg
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by using +9 times -9 = -81 becauase - times + = -
dyoung
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so what should i wright down for the best integer thats an estimate to it -9?
godorovg
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yes that is what I would put, only because it started with -85 so the end result has to be the same which would be -9
dyoung
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k thxs
godorovg
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welcome and have a great day or night
dyoung
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night you too
dyoung
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what if a number has decimals like 7.3?