## dyoung 2 years ago whats the best integer estimate for the square root of -85

1. godorovg

can not do that. Square root can not be -85. srry

2. dyoung

whats the closest estimate to it

3. dyoung

?

4. godorovg

there isn't one for this problem, the reason is -85 and take the square root of that it would I for the closest

5. dyoung

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

6. godorovg

sprt (-85) is what i come up with on my calac

7. godorovg

well than let us break this down, sqrt of 81 is 9 and sqrt of 5 is 2.2360 with a - minus

8. dyoung

k

9. dyoung

since its an estimate thats an integer isnt 9 times 9 81 so wouldnt that be the closest estimate

10. godorovg

yes that is right

11. dyoung

how would i make iit negative

12. godorovg

by using +9 times -9 = -81 becauase - times + = -

13. dyoung

so what should i wright down for the best integer thats an estimate to it -9?

14. godorovg

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

15. dyoung

k thxs

16. godorovg

welcome and have a great day or night

17. dyoung

night you too

18. dyoung

what if a number has decimals like 7.3?