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3. Limits of piecewise functions - Calculus A/B | Question on finding one sided limits

I think that we have to look at one-sided limits any time the function behaves differently on different sides of the value in question.  Since the limit from the left is 2 but the limit from the ri...

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3. Algebra 1 bug

Ivy,  I found the mistake in your answer. -6/5 - 2/3v + 4/15 + 1/3vRewrite -6/5 as -18/15:=  -18/15 - 2/3v + 4/15 + 1/3vGroup the terms with v and those without:= - 2/3v + 1/3v + -18/15 + 4/15Group...

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3. Dividing question

I think you are using different symbols than I am used to here in the US.I think you are asking about  3 hundredths divided by 6 tenths, 3 divided by 6 tenths, and  3 tenths divided by 6. I am no...

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3. slope intercept word problem

Was the problem here on Khan Academy? Any idea which course?

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3. Verb Tenses

It would help to know which verb tenses you want help with.  

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3. Trends in categorical data

Answer A is contrasting that the percentage of people who oppose candidate X who are from Virginia is higher than the percentage of people in the study who are from Virginia.  That's why it says "o...

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3. calculus

If you have specific questions, I'd be happy to help.  I did both single and multi-variable college calculus (though it's quite rusty).

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3. Transformations

I think it depends.  What course & unit was this in?  What were the exact problem instructions and wording?

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2. Feature Requests and General Site Feedback
3. Is "Incredible Answer" awarded automatically based on votes, independent of actual quality?

Here is the post I saw:

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2. Content Requests and Feedback
3. Repeat Test Questions When Retaking a Test

Even if there were 1000 possible questions chosen randomly, there is still an 14.6% chance that you could get 1 repeat out of 10 questions.  The chance of 2 repeats is smaller, but still non-zero. ...