Question about Calculators

1 Answer

I need know answer this -7(2+3)= ?????

Thank you.

Posted by on

1 Answer

  • Level 1:

    An expert who has achieved level 1.

  • Contributor
  • 1 Answer


Posted on Nov 14, 2008

Add Your Answer

Uploading: 0%


Complete. Click "Add" to insert your video. Add



Related Questions:

1 Answer

I want to know about algera question -2x+7=18 , I know the answer, I know how to work it out , but pliz may u make it clear to. may u illustrate it , so that I understand clear. thank u

good , if you know the answer and can work it out then show us how it is done because -2 times +7 is -14 not 18
I am indeed interested to find out how this works

Sep 30, 2016 | Calculators

3 Answers

What two numbers multiply to get -7 and add to get 6

+7 and -1 multiply to -7 and add to +6.

Dec 03, 2014 | Calculators

1 Answer

I dont understand why I keep getting the wrong exponet in trying to figure out 1500nm divided by 10^9. the answer I get is 1.5 *10^-7 -but the answer is 1.5*10^-6. What am I doing wrong?

Without knowing exactly what you're doing I can't be sure, but I suspect you're entering the 10^9 as something like 1 0 EE 9 .

1 0 EE 9 gives you 10 * 10^9, which is 10^10. You should be doing this as 1 5 0 0 / 1 EE 9 = .

Nov 06, 2012 | Texas Instruments TI-30XA Calculator

1 Answer

My TI-84 Plus Silver Edition is giving regular math problems (.064/160000) an answer involving an E (4E-7) and I'm not sure how to change it.

The E is an engineering notation for 'x10^' so the answer there 4E-7 = 4 x 10^ -7 (I'm using the x as multiplication). I'm afraid there isn't a way of changing it (that I know of) but it is not difficult to learn, it's just a simple way of writing scientific notation!

Sep 01, 2011 | Texas Instruments TI-84 Plus Calculator

2 Answers

What is 5 foot 7 in cm?

Hi Tara, 5 foot 7 inches is equal to 170.18 Centimeters.

May 05, 2011 | Calculators

1 Answer

I need to punch in: -log 10 Ka to get pKa,how do i do that? let's say Ka = 1.75 X 10^-5 the answer = 4.76 pKa = -log 10 Ka show me step by step how to punch in. thanks!

(-) LOG 1 . 7 5 EE (-) 5 ENTER

The (-) is just to the right of the decimal point, the LOG key is in the leftmost column between the GRAPH and LN keys, the EE key is just above the 7 key.

Dec 11, 2010 | Texas Instruments TI-85 Calculator

1 Answer

After working a simple problem adding numbers in scientific notation, I want to convert the answer, a decimal, to scientific notation

For converting answer in to scientific notation do the following steps. shift key after that press mode key next to on button.

2.From the menu that is displayed in the screen press 7 for displaying answer in scientific notation.

Thank you.

Jun 10, 2010 | Casio FX-115ES Scientific Calculator

1 Answer

Calculate sixty-nine to the third power using only 4 and 7 digit. In the calculater, you only allow to use 4 and 7 digit to get the answer for sixty-nine to the third power. what are the steps to do this?...

  1. You need no calculator to do that.
  2. I fail to perceive any redeeming value to this endeavor of yours.
  3. Here are your steps.
  • 69=64+1+4 =4^3 +(4/4) +4=4^(7-4) + (4/4) +4
  • 69^3= {4^(7-4) + (4/4) +4}^(7-4).
So? I do not feel any the smarter for answering this taunt. Rather the contrary.

Feb 25, 2010 | Texas Instruments TI-89 Calculator

1 Answer

I need to know how to get answers in scientific notation how do i go about that?

Press [SHIFT][MODE] and select the number key 7, corresponding to the option 7: Sci. Press [EXE].

Hope it helps.
Thank you for rating this solution.

Dec 05, 2009 | Casio FX-115ES Scientific Calculator

1 Answer

I can't seem to do simple subtraction with my Victor 1208-2. When I subtract say 5-4, I get a negative 9. Is there a setting or do I need to press something different to get simple subtraction to work?

When you want to complete a problem on an adding machine, such as "7 - 3," you would not key in "7," then the subtraction sign, then "3" and then an equal sign. If you do, then you will get an answer of "-4," and you know that is not the correct answer. Again, you have to think like an accountant when you are working with your adding machine. To figure this subtraction problem on an adding machine, you would need to key in "7," the addition sign, "3" and then the subtraction sign; you would get the answer of 4. You are actually working the problem as "7 + (-3)." This would be true on most modern day machines. In order to subtract, you have to add the negative number.

Sep 25, 2009 | Victor 1208-2 Calculator

Not finding what you are looking for?
Calculators Logo

Related Topics:

47 people viewed this question

Ask a Question

Usually answered in minutes!

Top Calculators Experts


Level 3 Expert

96627 Answers


Level 3 Expert

7987 Answers

Stevan Milanovic

Level 2 Expert

243 Answers

Are you a Calculator Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides