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2006-10-30 06:27:00 · 23 answers · asked by mumof3 3 in Science & Mathematics Mathematics

23 answers

2.6457513110645907

2006-10-30 06:30:49 · answer #1 · answered by Dragon Empress 6 · 2 1

As the square root of 7 is irrational the decimal notation cannot give a precise value. However, the answer accurate to 1000 digits is below:

2.6457 51311 06459 05905
01615 75363 92604 25710
25918 30824 50180 36833
44592 01068 82323 02836
27760 39288 64745 43610
61506 45783 38497 46309
57435 29888 62721 47844
27390 55588 01077 22717
15072 97283 23892 29968
95948 65087 26070 09780
54203 72382 80237 15941
10034 19391 16001 57852
55963 05945 74103 51523
96802 71640 73737 99074
04158 15199 04403 47431
94536 71399 73059 70050
51399 69223 75456 16097
11902 73781 54991 63328
82877 04000 65757 06746
51963 49775 20837 93818
11461 30908 76473 78659
56243 30579 94798 12816
32307 05483 65010 77156
17946 36119 15534 54536
47749 48205 93090 49484
98340 33989 00210 47861
66733 27950 36939 24622
57170 53716 49257 87548
32290 73249 26713 46980
29894 99080 37748 25110
92278 95568 89791 98088
14834 09083 16852 51335
35829 53917 22117 70714
41497 45769 07081 98944
44414 58972 28474 14003
03502 35320 37194 87073
82629 31851 93640 90832
28059 64627 83761 02195
97941 97089 09635 46958
61341 18179 30678 16213
60849 10167 78353 21255
63346 34900 21898 14604
22559 29503 66956 24186
92737 32771 50220 87523
09966 46981 32032 12818
94547 85680 20950 63596
24466 28550 07619 05041
39350 44743 71234 88522
33277 36251 00450 59621
08067 23346 98120 00430

2006-10-30 06:40:56 · answer #2 · answered by turkeyphant 3 · 0 0

The answers given are correct but remember that the square root of 7 is an irrational number. We don't know about the context of your question so the answer could well require you to leave it as a surd - sq. rt of 7. If it appears as a denominator you could be required to rationalise the expression.

2006-10-30 19:03:44 · answer #3 · answered by RATTY 7 · 0 1

square root of 7 = 2.64575131106459

2006-10-30 06:30:28 · answer #4 · answered by prodigy 1 · 0 1

There is no whole number answer to the square root of 7.

2006-10-30 06:28:40 · answer #5 · answered by D.J 5 · 0 2

The answer is irrational.

You can either say root 7, which is accurate, or you can use some estimate for it, which a calculator (or above poster) has given you. Those are _all_ estimates though.

2006-10-30 06:35:27 · answer #6 · answered by kheserthorpe 7 · 0 1

you can use the calculator: sqrt7=2.645752311

here's a nice way to fiddle a result

use the iteration formula

x1=1,x(n+1)=(1/2)(xn+7/xn) for n=1,2,3,...........

x2=(1/2)(1+7/1)=4
x3=(1/2)(4+7/4)=2.875
x4=(1/2)(2.875+7/2.875)=2.654891304
x5=(1/2)( 2.655+7/2.655)=2.646
x6=(1/2)(2.646+7/2.646)=2.645751323
x7=(1/2)(2.645751323
+7/2.645751323)
=2.645751311

iteration is one method of working
out irrational square roots

i hope that this helps

2006-10-30 07:07:43 · answer #7 · answered by Anonymous · 0 1

go on www.google.com and type in "square root of 7" and you get the answer

2006-10-30 09:14:06 · answer #8 · answered by Rose 5 · 0 1

imperfect square root!

2006-10-30 06:28:37 · answer #9 · answered by Kissplus 2 · 0 1

Approximately 2.65

2006-10-30 06:39:36 · answer #10 · answered by Anonymous · 0 1

Hello,

They r all right!

You can make sure by using a calculator:)

Hope that was helpful

2006-10-30 06:31:27 · answer #11 · answered by Perfect_Human 2 · 0 1

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