Am I on the right track with this question?
970874
In your context brightness and luminosity do mean the same thing, and that is the total amount of light given off by the star.\n\nHowever brightness can sometimes mean surface brightness, which is luminosity per unit area of the star. So a red giant has a low surface brightness, but the large surface area of the star gives a large total luminosity for the star as a whole.
382734
answer the questions correctly
151370
is this a trick question?
274239
It should be fine.\n\nQuestions?  Concerns?  Comments?  Email me through the link in my profile, and I'll get back to you as soon as possible.
651301
Is this a business question??
250091
huh? why are you asking? You seem to have pretty good idea already...but don't spend too much time worrying about what other people think. Do what is right for you.
1033634
Where is the question in this "statement"?
582231
... is this supposed to be a question????
88142
Pick the answer above, seems to be correct
521775
Finish the question???
1175943
I believe you've got yourself off to a great start right here. It's possible that someone will see your question here and help. Good Luck.
811732
Is this a homework question?
127298
Don't understand exactly what the question is...
784392
Here is what i found.  I'm not sure how right this is, but you can check it out.  Good Luck with your testing.
781855
Since the question is relative to whether it is good or not:\nYes, it is.\nWould you like us to work it out as well? I appreciate that it must come right out of a quesiton from, perhaps, your homework? Otherwise, why the last sentence? "One hint is that it is related to chapter- 'CIRCLES'" Can you attach that entire chapter for us as well?\n\nThanks!
883460
Please see the answer above and find out the missing factor in your calculation. You are in the right track. All the best!
316686
the process u follow is correct, but actually it is wrong. fundamentally wat u did is ok, but technically it is wrong. because this becomes a quadratic equation which has more than 1 root. so this equation has more than 1 answers for which it is true.