admin

16 Questions
1410 Answers

+4

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+3146

Neue Datenschutzrichtlinie, Mai 2018

Hallo,

Diese Webseite wurde aktualisiert mit kleineren Anpassungen an die DS-GVO.
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Off-Topic

admin 27.05.2018

+19

3502

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+3146

New Privacy Policy, May 2018

Hello,

this website was updated today because of some legal changes here in Europe. ("GDPR").
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Off-Topic

admin 27.05.2018

+6

2284

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New version is online for two weeks now, any problems?

Hi,

Any problems? You can use the "Report a Problem" link in the footer, or send me an email to britnex+bugs@gmail.com
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admin 12.09.2015

+20

2725

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New website is online.

Hi,

Any problems? You can use the "Report a Problem" link in the footer, or send me an email to britnex+bugs@gmail.com , thank you!
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Melody ●●●●●●●●●●●●●●●●

admin 30.08.2015

+7

2590

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Neue Version der Webseite ist online

Hi,

Probleme bitte per Email an britnex+bugs@gmail.com melden, Danke!
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admin 30.08.2015

+67

4

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+3146

three times ten to the power of negative 2

help what is 3x10to the power of negative 2

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admin 26.01.2012

+3146

0

[input]5254/525[/input]

admin28.03.2012

+3146

0

[input]-1.33333333333333334[/input]

admin28.03.2012

+3146

0

4f+3f+3=17
with: 4f+3f=7f
7f+3=17
-3 on both sides:
7f+3-3=17-3
7f=14
divide both sides by 7
7f/7 = 14/7
f = 2

[input]4f+3f+3=17[/input]

admin28.03.2012

+3146

0

[input]270/360 = (13x + 2)pi[/input]

admin28.03.2012

+3146

0

admin:
Good luck!
Ernie

very nice work.

admin28.03.2012

+3146

0

[input]4.9t^2+9.8t-7=0[/input]

admin28.03.2012

+3146

0

[input]5x^2-2x-3=0[/input]

admin28.03.2012

+3146

0

2*(27^x) = 9^(x-1)
ln on both sides:
ln( 2*(27^x) ) = ln( 9^(x-1) )
x * ln( 27 ) + ln( 2 ) = (x-1) * ln( 9 )
x * ln( 27 ) + ln( 2 ) = x * ln( 9 ) - ln( 9 )
x * ln( 27 ) = x * ln( 9 ) - ln( 9 )-ln( 2 )
x * ln( 27 ) = x * ln( 9 ) - ln( 9 )-ln( 2 )
x * ln( 27 ) -x * ln( 9 ) = - ln( 9 )-ln( 2 )
x * ( ln( 27 ) - ln( 9 ) ) = - ln( 9 )-ln( 2 )
x = (- ln( 9 )-ln( 2 )) / ( ln( 27 ) - ln( 9 ) )
[input](- ln( 9 )-ln( 2 )) / ( ln( 27 ) - ln( 9 ) )[/input]

admin28.03.2012

+3146

0

2*(27^x) = 9^(x-1)
ln on both sides:
ln( 2*(27^x) ) = ln( 9^(x-1) )
x * ln( 27 ) + ln( 2 ) = (x-1) * ln( 9 )
x * ln( 27 ) + ln( 2 ) = x * ln( 9 ) - ln( 9 )
x * ln( 27 ) = x * ln( 9 ) - ln( 9 )-ln( 2 )
x * ln( 27 ) = x * ln( 9 ) - ln( 9 )-ln( 2 )
x * ln( 27 ) -x * ln( 9 ) = - ln( 9 )-ln( 2 )
x * ( ln( 27 ) - ln( 9 ) ) = - ln( 9 )-ln( 2 )
x = (- ln( 9 )-ln( 2 )) / ( ln( 27 ) - ln( 9 ) )
[input](- ln( 9 )-ln( 2 )) / ( ln( 27 ) - ln( 9 ) )[/input]

admin28.03.2012

+3146

0

find the area of the complete circle (360deg), then calculate only the part of the full circle (135deg).

Area of full circle divided by (360/135) is the area of the "shaded" area.

admin27.03.2012