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- Press the "2nd" key.
- Press the x2 function key.
- Enter the
**number**. - Press the close-bracket key ).
- Press the ENTER = key.

2/15/2021 6:25:23 PM •
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on Feb 15, 2021

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Here:

http://education.ti.com/downloads/guidebooks/scientific/30xii/30xiiqrg-eng.pdf

Rate me, thanks.

http://education.ti.com/downloads/guidebooks/scientific/30xii/30xiiqrg-eng.pdf

Rate me, thanks.

9/16/2019 5:25:07 PM •
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on Sep 16, 2019

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2/9/2017 2:56:07 AM •
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on Feb 09, 2017
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I believe factors can be calculated on any basic calculator.
Starting with 1, increasing by 1 until you get to square root (number) + 1
Let's do an example.
28
square root (28)+1 = 6
Factors
1, 28/1=28
2, 28/2=14 14*2 - 28 = 0 (when you divide, you get no decimal)
3, 28/3=9.33333 - not a factor - doesn't go in evenly
4, 28/4 =7
5, 28/5=5.6 - not a factor - doesn't go in evenly
6, 28/6=4.66666 - not a factor
So now we can list our factors - 1, 28, 2, 14, 4, 7
Putting them in order, we get 1, 2, 4, 7, 14 and 28.
Good luck,
Paul

7/16/2016 2:48:17 AM •
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on Jul 16, 2016

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pKa=-logKa
-pKa=logKa
10^(-pKa)=10^(log(Ka))=Ka
Ka=10^(-3.89)
I don't know where you got the value you give but here is what my calculator finds.

2/11/2016 11:14:32 PM •
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on Feb 11, 2016

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The inverse of a trigonometric function shares the same physical key as the function itself. Press 2nd then the function key.

1/30/2016 1:05:00 PM •
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on Jan 30, 2016

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Using any calculator, multiply it by 100. I think of "per cent" is "per 100" so you need to move to decimal two places to the right or multiply by 100. In this case, either way, we get 10%.
Any questions, let me know.
Good luck.
Paul

9/20/2015 2:33:53 AM •
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on Sep 20, 2015

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This calculator has no e button, per se. To get the value of e, use the push "1", then "2nd" button, then the "LN" button (which is e raised to the power of x). With an x of 1, e to the first power is e.

1/8/2015 7:18:47 AM •
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on Jan 08, 2015

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The dimensions of the yard are 13.5m x 10.5m.

11/3/2014 2:22:43 PM •
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on Nov 03, 2014

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They washed 42 cars and 28 vans.

10/1/2014 3:53:50 AM •
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on Oct 01, 2014

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Press the cubic root key 3Root and enter the fraction enclosed in parentheses. 3Root((a/b))

9/2/2014 4:03:32 AM •
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Answered
on Sep 02, 2014

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There isn't one. You have to use the old eyeball. If the number on the screen is positive, leave it alone. If it's negative, change the sign.

8/30/2014 5:29:30 PM •
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on Aug 30, 2014

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Exponents of 10 are entered by pressing [2nd][X^-1] (EE).
For powers of any base, enter the base, press the [^] (below PI) then enter exponent. Use the (-) white key if exponent is negative.

8/28/2014 11:55:34 PM •
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Answered
on Aug 28, 2014

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You cannot manipulate radicals with this calculator. All radical results will be displayed as (approximate) decimal numbers.

8/28/2014 11:11:41 PM •
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on Aug 28, 2014

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Convert the speed from km / h to m/s.
Change in speed = (Final speed (in m/s) - initial speed (0))/ 3.7 s
The result is the average acceleration in **m / s^2**.
100 km /h = (100 000 m)/ (3600 s)= 27.7778 m/s

8/28/2014 11:08:27 PM •
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Answered
on Aug 28, 2014

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Yes. Press the PRB key then select "RAND."

7/23/2014 9:14:24 AM •
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Answered
on Jul 23, 2014

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1answer

0.021434375

6/13/2014 5:57:34 AM •
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Answered
on Jun 13, 2014

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1answer

1.53

6/12/2014 3:19:20 AM •
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Answered
on Jun 12, 2014

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Use the LOG button on the second row of the keyboard.

6/6/2014 5:03:31 PM •
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Answered
on Jun 06, 2014

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Use the ^ key above and left of the 7 key. For example, to raise 2 to the 3rd power, press 2 ^ 3 =

6/2/2014 4:39:08 PM •
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Answered
on Jun 02, 2014

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