Question about Texas Instruments TI-84 Plus Calculator

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Batteries wont last long

It wont stay on for very long even with new batteries in it what should i do?

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  • miguelob1 Sep 01, 2008

    For about a year the batteries drain off even after being dormant (turned off) for a few days. If I insert the batteries every time I need the unit and then remove them then the battery life seems to be what it was when the 84 was new.

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2 Answers

Yeah many of my friends also encountered this problem. Why is the calculator so battery-sapping?

Posted on Aug 30, 2008

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This may sound stupid, but it happens- have you checked the direction in which the batteries are installed?

Posted on Aug 19, 2008

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Posted on Jan 02, 2017

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Bizhub C250 using to much toner. Images are very dark. Ink can even be rubbed off pages. How do you adjust?


Check that the fuser is not in enevople mode. two green handle up not down. check the files

Oct 28, 2016 | Konica Minolta bizhub C250 All-In-One...

1 Answer

What are rational numbers


Use the words: decimal part, not decimal fractin
Any number whose decimal part is periodic (has a recurring pattern that repeats indefinitely) is equivalent to a rational number, IS a rational number
0.345 345 345 ... =345/999=115/333
In the following screen captures, discard the last digit if it does not belong to a period. It is the effect of rounding up of the calculator


3deb58af-3d70-4f55-adc1-35b7c9392031.jpg
Period is 345

7b3e81fc-c59c-455d-a5f2-e4b169925684.jpg
Period is 1
847342a7-5d3b-4604-b706-2ec9853c2dc7.jpg
Period is 09
8f929e6d-512c-41e2-a253-ffa88c0ab74e.jpg
Period is 79
0417fef1-6661-4f31-868f-8202884893ae.jpg

In general, if you have a decimal part of the form 0.d_1 d_2 d_3....d_n d_1 d_2 d_3 ...d_n ... where d_1 is the first digit of the period, d_2 is the 2nd digit of the period, ..., d_n is the n-th digit (and the last one) of the period, then the fraction representation of
0.d_1d_2...d_n d_1d_2... d_n ...=(d_1d_2...d_n)/(99...9) where the number of 9's in the denominator is equal to the number of digits in the period.
Once the fraction is found, one should reduce it to its simplest form.

Mar 02, 2014 | Office Equipment & Supplies

1 Answer

My fax wont work in my ricoh aficio 1515 mf??


Using the 1515 as a fax machine is a pretty simple procedure if everything works right. All you have to do is hook a working phone line up to the phone jack on the back of the copier (the one labeled LINE, not TEL).

Why won't the fax work? If it is giving you an error message, what is the message?

If you are not getting a dial tone when faxing, unplug the fax from the phone line and plug a working phone in, and see if the phone gets a dial tone. If it doesn't, there is a problem with your phone line.

You can also try plugging the fax machine into another phone line. If the fax works on that line, then there may be a problem with the first line.

Are you having problems sending faxes or receiving them, or both?

Jan 05, 2010 | Office Equipment & Supplies

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