Question about Texas Instruments TI-30XA Calculator

( 3 * 5 ) LOG for common log or ( 3 * 5 ) LN for natural log, assuming you mean log of (3 times 5). If you want (log of 3) times 5 then its 3 LOG x 5 = or 3 LN x 5 =

Posted on May 03, 2010

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Posted on Jan 02, 2017

posted now 3 times

must we answer 3 times,

i answered it, from the book, 77 CJ5

its on the mitchells site, all that,

log in and read?

must we answer 3 times,

i answered it, from the book, 77 CJ5

its on the mitchells site, all that,

log in and read?

Nov 09, 2016 | Jeep Cars & Trucks

Rephrase the question please. It makes no sense, in particular what are all those TIMES for?

Combine all the logs using the rule log_2(a)+log_2(b)=log_2(a*b)

You get

log_2((x-10)(x-3)/x)=2=log_2(4)

Thus

(x-10)*(x-3)/x=4

Convert it to a quadratic equation (x^2-17x+30=0). the solutions are x=2 and x=15. That should not be too difficult to factor out 5*2=30 -15-2=-17.

Combine all the logs using the rule log_2(a)+log_2(b)=log_2(a*b)

You get

log_2((x-10)(x-3)/x)=2=log_2(4)

Thus

(x-10)*(x-3)/x=4

Convert it to a quadratic equation (x^2-17x+30=0). the solutions are x=2 and x=15. That should not be too difficult to factor out 5*2=30 -15-2=-17.

Jun 22, 2014 | Casio FX-300W Plus Calculator

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Please rate my answer.

Please rate my answer.

Apr 13, 2013 | Samsung Galaxy Y Gt-s5360 - White unlocked...

+4917677424185 Email Transcript [HVD] ====== Start time: 1/5/2012, 2:12:7 [HVD] Module HVD Log Version = 2,12,32,426 [HVD] OS Info 6 0 S 2 0 [VC] ====== Start time: 1/5/2012, 2:12:7 [VC] Module VC Log Version = 1,7,15,426 [VC] OS Info 6 0 S 2 0 [VC] ====== Start time: 1/5/2012, 2:12:7 [VC] Module VC Log Version = 1,7,15,426 [VC] OS Info 6 0 S 2 0 [YP] ====== Start time: 1/5/2012, 2:12:7 [YP] Module YP Log Version = 2,12,32,426 [YP] OS Info 6 0 S 2 0 [YP] GetYoutubeURLType() = -1, http://www.facebook.com/people/Patricia-Geiss/100002655619425 [YP] ====== Start time: 1/5/2012, 2:12:7 [YP] Module YP Log Version = 2,12,32,426 [YP] OS Info 6 0 S 2 0 [HVD] ====== Start time: 1/5/2012, 2:12:9 [HVD] Module HVD Log Version = 2,12,32,426 [HVD] OS Info 6 0 S 2 0 [YP] GetYoutubeURLType() = -1, info@web.de [YP] GetYoutubeURLType() = -1, info@web.de [YP] ====== Start time: 1/5/2012, 2:12:12 [YP] Module YP Log Version = 2,12,32,426 [YP] OS Info 6 0 S 2 0 [YP] InternetCrackUrl() = 12006, info@web.de [YP] WinHttpCrackUrl() = 12006, info@web.de [YP] GetYoutubeURLType() = -1, info@web.de [YP] GetYoutubeURLType() = -1, info@web.de [YP] ====== Start time: 1/5/2012, 2:12:51 [YP] Module YP Log Version = 2,12,32,426 [YP] OS Info 6 0 S 2 0 [YP] InternetCrackUrl() = 12006, info@web.de [YP] WinHttpCrackUrl() = 12006, info@web.de [HVD] ====== Start time: 1/5/2012, 2:14:48 [HVD] Module HVD Log Version = 2,12,32,426 [HVD] OS Info 6 0 S 2 0 [VC] ====== Start time: 1/5/2012, 2:14:48 [VC] Module VC Log Version = 1,7,15,426 [VC] OS Info 6 0 S 2 0 [VC] ====== Start time: 1/5/2012, 2:14:48 [VC] Module VC Log Version = 1,7,15,426 [VC] OS Info 6 0 S 2 0 [YP] ====== Start time: 1/5/2012, 2:14:48 [YP] Module YP Log Version = 2,12,32,426 [YP] OS Info 6 0 S 2 0 [YP] GetYoutubeURLType() = -1, http://www.facebook.com/people/Patricia-Geiss/100002655619425 [YP] ====== Start time: 1/5/2012, 2:14:48 [YP] Module YP Log Version = 2,12,32,426 [YP] OS Info 6 0 S 2 0 [HVD] ====== Start time: 1/5/2012, 2:14:49 [HVD] Module HVD Log Version = 2,12,32,426 [HVD] OS Info 6 0 S 2 0 [YP] GetYoutubeURLType() = -1, snc4/203372_100002655619425_1800818_n.jpg [YP] GetYoutubeURLType() = -1, snc4/203372_100002655619425_1800818_n.jpg [YP] ====== Start time: 1/5/2012, 2:14:51 [YP] Module YP Log Version = 2,12,32,426 [YP] OS Info 6 0 S 2 0 [YP] InternetCrackUrl() = 12006, snc4/203372_100002655619425_1800818_n.jpg [YP] WinHttpCrackUrl() = 12006, snc4/203372_100002655619425_1800818_n.jpg [YP] GetYoutubeURLType() = -1, snc4/203372_100002655619425_1800818_n.jpg [YP] GetYoutubeURLType() = -1, snc4/203372_100002655619425_1800818_n.jpg [YP] ====== Start time: 1/5/2012, 2:15:11 [YP] Module YP Log Version = 2,12,32,426 [YP] OS Info 6 0 S 2 0 [YP] InternetCrackUrl() = 12006, snc4/203372_100002655619425_1800818_n.jpg [YP] WinHttpCrackUrl() = 12006, snc4/203372_100002655619425_1800818_n.jpg [YP] GetYoutubeURLType() = -1, snc4/203372_100002655619425_1800818_n.jpg [YP] GetYoutubeURLType() = -1, snc4/203372_100002655619425_1800818_n.jpg [YP] ====== Start time: 1/5/2012, 2:15:15 [YP] Module YP Log Version = 2,12,32,426 [YP] OS Info 6 0 S 2 0 [YP] InternetCrackUrl() = 12006, snc4/203372_100002655619425_1800818_n.jpg [YP] WinHttpCrackUrl() = 12006, snc4/203372_100002655619425_1800818_n.jpg

Feb 09, 2012 | Health & Beauty

To calculate the common log ( LOG base 10) of a positive number, just press the LOG key, the one above the blue Division key, then enter the number and close the right parenthesis. Press the ENTER key to get the result.

If you want to calculate the log in a base other than e (natural) or 10 (decimal) logarithms, you need to make use of one of the equivalent formulas below

log in base a of a number b

log_a(b)=log_10(b) / [ log_10(a)] or

log_a(b)= ln(b)/ln(a)

If you want to calculate the log in a base other than e (natural) or 10 (decimal) logarithms, you need to make use of one of the equivalent formulas below

log in base a of a number b

log_a(b)=log_10(b) / [ log_10(a)] or

log_a(b)= ln(b)/ln(a)

Apr 19, 2011 | HP 39g Calculator

You can calculate the log of x to any base b by calculating log(x)/log(b) or ln(x)/ln(b). So, to calculate log 5 to the base 3, press

LOG 5 ) / LOG 3 ENTER

or

LN 5 ) / LN 3 ENTER

LOG 5 ) / LOG 3 ENTER

or

LN 5 ) / LN 3 ENTER

Jan 25, 2011 | Texas Instruments TI-83 Plus Calculator

Hi ;

for log base 10 use the the "log" key

example :

log(2) + log(3) = log(6)

enter 2 press the log key you will get 0.30102999 press the '+" key than 3 log you should get 0.47712125 for it Press the "=" or enter and you should get 0.778151250 for a answer than press inv or 2nd log and you should get 6 for a answer

and that all there is to it

for log base 10 use the the "log" key

example :

log(2) + log(3) = log(6)

enter 2 press the log key you will get 0.30102999 press the '+" key than 3 log you should get 0.47712125 for it Press the "=" or enter and you should get 0.778151250 for a answer than press inv or 2nd log and you should get 6 for a answer

and that all there is to it

Oct 07, 2009 | Texas Instruments BA-II Plus Calculator

Hello,

You are victim of a confusion between terms. Base-n calculations are calculations using various numeration systems (bases) : binary (2), octal(8) hexadecimal (16) and decimal (10). What you want is how to calculate powers, logarithms, exponentials and these have also the notion of base; Log in base 10 is the common log, whereas natural logarithms, are logarithms in base e.

Back to your exemple: 5 times 5 and raise the whole to power 3?

In that case [(] 5 [x] 5 [)] [^] 3 or [X to the 3] if you have such key or

25 [^] 3, because 5x5 = 25

5 times (5 raised to power 3)

5[x] [( ] 5 [^] 3 [)] or 5 [^] 4 because of the rules about products of powers with the same base.

Hope it helps.

You are victim of a confusion between terms. Base-n calculations are calculations using various numeration systems (bases) : binary (2), octal(8) hexadecimal (16) and decimal (10). What you want is how to calculate powers, logarithms, exponentials and these have also the notion of base; Log in base 10 is the common log, whereas natural logarithms, are logarithms in base e.

Back to your exemple: 5 times 5 and raise the whole to power 3?

In that case [(] 5 [x] 5 [)] [^] 3 or [X to the 3] if you have such key or

25 [^] 3, because 5x5 = 25

5 times (5 raised to power 3)

5[x] [( ] 5 [^] 3 [)] or 5 [^] 4 because of the rules about products of powers with the same base.

Hope it helps.

Feb 17, 2009 | Casio FX-115MS Plus Calculator

Here something that would help you:

log x base y = log x / log y

log (x*y) = log x + log y

log (x/y) = log x - log y

so log 24 base 2 it's log 24 / log 2 etc.

and if i get right what you wrote x= 10 ^ ( 3 * (log 5) ) if no inverse it it's easy really Hope it's helped you.

log x base y = log x / log y

log (x*y) = log x + log y

log (x/y) = log x - log y

so log 24 base 2 it's log 24 / log 2 etc.

and if i get right what you wrote x= 10 ^ ( 3 * (log 5) ) if no inverse it it's easy really Hope it's helped you.

Oct 23, 2008 | Casio FX-260 Calculator

The problem is simple. You're trying to get an [H+] concentration which is obviously going to have a value of some number times ten raised to a negative power. Therefore, you have to insert the negative value of the pH into the 10^(x). When you insert said negative number you will come out with the right answer.

i.e.

The pH of a sample of human blood was calculated to be 7.41. What is the [H+] concentration of the blood?

10^(-7.41) = [H+]

[H+] = 3.9 E-8

(the answer should only have two sig. figs because the pH has two digits after the decimal.

i.e.

The pH of a sample of human blood was calculated to be 7.41. What is the [H+] concentration of the blood?

10^(-7.41) = [H+]

[H+] = 3.9 E-8

(the answer should only have two sig. figs because the pH has two digits after the decimal.

Jun 10, 2008 | Texas Instruments TI-84 Plus Calculator

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