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anonymous
 one year ago
Can someone please help me out?
anonymous
 one year ago
Can someone please help me out?

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anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Calculate the above formula, expressing the answer in scientific notation with the correct number of significant figures:

Michele_Laino
 one year ago
Best ResponseYou've already chosen the best response.1hint: \[\Large 1 \times {10^{  3}} = 0.001\]

Michele_Laino
 one year ago
Best ResponseYou've already chosen the best response.1and: \[\Large 3.61 \times {10^{  3}} = 0.00361\]

Michele_Laino
 one year ago
Best ResponseYou've already chosen the best response.1from your attachement I see this computation: \[\Large \left( {8.86 + 1.0 \times {{10}^{  3}}} \right) \div \left( {3.61 \times {{10}^{  3}}} \right)\] am I right?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Yea you are right. I accidentally read the sign wrong. I was suppose to divide not add. So I should get 2.45429362881 right?

Michele_Laino
 one year ago
Best ResponseYou've already chosen the best response.1I got: \[\Large \left( {8.86 + 1.0 \times {{10}^{  3}}} \right) \div \left( {3.61 \times {{10}^{  3}}} \right) = 2.454 \times {10^3}\]

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Do I need the full number or should I just shorten it to 2.454?

Michele_Laino
 one year ago
Best ResponseYou've already chosen the best response.1I think that we have to take at least 3 significant figures, so our result will be like below: \[\Large 2.45 \times {10^3}\]

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0What exactly are the significant figures? I was confused on that part.

Michele_Laino
 one year ago
Best ResponseYou've already chosen the best response.1the significant figures are 2, 4, and 5

Michele_Laino
 one year ago
Best ResponseYou've already chosen the best response.1another example: if we have a number like below: 1.0025 then the significant figures are: 1, 2, and 5

Michele_Laino
 one year ago
Best ResponseYou've already chosen the best response.1whereas, if we have this number: 1,200 then the significant figures are 1 and 2

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0So the signification figures would the answer to that part be 3? Or would the answer to that part be 2, 4, and 5.

Michele_Laino
 one year ago
Best ResponseYou've already chosen the best response.1if we have this number: 0.0025 then the significant figures are 2, and 5

Michele_Laino
 one year ago
Best ResponseYou've already chosen the best response.1your answer, is: \[\Large 2.45 \times {10^3}\]

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0So with scientific notation you only go 2 digits after the decimal right? I thought the answer was 2.454 x 10^3. Or am I wrong on that part?

Michele_Laino
 one year ago
Best ResponseYou've already chosen the best response.1when we have a decimal point, the significant figures are the figures at the left and at the right with respect to that decimal point

Michele_Laino
 one year ago
Best ResponseYou've already chosen the best response.1so, the number 2.454 x 10^3 has four significant figures

Michele_Laino
 one year ago
Best ResponseYou've already chosen the best response.1please, wait, is your computation an experimental measure?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0I'm not sure what you mean on computation or experimental?

Michele_Laino
 one year ago
Best ResponseYou've already chosen the best response.1since 1*10^3 has only one significant figure, then we have to rewrite our result with one significant figure, so your result is: \[\Large 2 \times {10^3}\]

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0I was just wondering on the scientific noation is both 2.45 and 2.454 both correct. It doesn't matter how I state it. Only difference is how many significant figures their are.

Michele_Laino
 one year ago
Best ResponseYou've already chosen the best response.12.45 has three significant figures, whereas 2.454 has four significant figures

Michele_Laino
 one year ago
Best ResponseYou've already chosen the best response.1as a general prescription, we have to round off our result like the most inaccurate measure. Now our most inaccurate number is 1*10^3 which has only one significant figure. So we have to round off our final result to one significant figure, so we get: \[\Large 2 \times {10^3}\]

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0I'm confused on how I'm suppose to state my answer. How should I write it?

Michele_Laino
 one year ago
Best ResponseYou've already chosen the best response.1it is simple, your measure has to be written like below: \[\Large 2 \times {10^3}\] which has only one significan figure, and such significant figure is 2

Michele_Laino
 one year ago
Best ResponseYou've already chosen the best response.1I have rounded off 2.454... to 2

Michele_Laino
 one year ago
Best ResponseYou've already chosen the best response.1please sorry, I see that the most inaccurate number is: 1.0 *10^3 which has 2 significant figures, so we have to round off our result to 2 significant figures, so your result is: \[\Large 2.5 \times {10^3}\] I have rounded off 2.454... to 2.5 and 2.5 *10^3 has 2 significant figures, namely 2, and 5 Sorry again, for my error

Michele_Laino
 one year ago
Best ResponseYou've already chosen the best response.1more explanation: a number like this one: 1.0 has two significant figures, namely 1 and 0

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Do I have to round when stating my answer? Does it matter how I state my answer also?

Michele_Laino
 one year ago
Best ResponseYou've already chosen the best response.1yes! since when you do a computation, using some formula, the result which you get, can not be as accurate as the most accurate measure

Michele_Laino
 one year ago
Best ResponseYou've already chosen the best response.1as a general prescription, the result which you get from a computation has to be as accurate as the less accurate measure

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0So how many digits should I state in the answer? Should I round it or not? I normally don't round it unless the question states to do so.

Michele_Laino
 one year ago
Best ResponseYou've already chosen the best response.1yes! you have to round it, like below: \[\Large 2.5 \times {10^3}\]

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0So is the answer is 2.5 x 10^3 or 2.5 x 10^3 @Michele_Laino ? Do you need to take the  off with scientific notation? The original question had a 3 so I wasn't sure. Also for the significant figures there's two of them right? 2 and 5.

Michele_Laino
 one year ago
Best ResponseYou've already chosen the best response.1yes! the significant figures are 2 and 5, and the right result is 2.5 x 10^3

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Thanks for all your help @Michele_Laino
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