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Mathematics: Post your doubts here!

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12163041_1499766913654416_1231765713_o.jpg

Can someone please solve this question?
 

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My guess is a B but it really depends on the grade threshold that year. I calculated 75, so if its a hard year where everybody does badly, you might get an A or a C if the year was easy
What is this 75
And arent grade threshold set according to the performances of candidates over the world??
 
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How did u devise the vector (1, b,c).
Plane q contains the line AB. Normally to show if a plane contains a line we assume that there are common points on l and plane, in this case point A and B.
But they already gave us point A and B so just make use of it. Sorry, I dont really know how to explain it to you.
 
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Plane q contains the line AB. Normally to show if a plane contains a line we assume that there are common points on l and plane, in this case point A and B.
But they already gave us point A and B so just make use of it. Sorry, I dont really know how to explain it to you.
Ok i got it. thank you very much. Off the topic though, hows ur prep for maths cuz as i saw your work, damn that was some good stuff
 
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What is this 75
And arent grade threshold set according to the performances of candidates over the world??
For math: (68/75)*50= 45.33
Total= 45.33+30 = 75.33
You can calculate your own total what. And yes grade threshold depends on the whole world. If in the exam you score this mark for a easy exam, the grade will be a B i guess. However, if almost all candidates had a though time, then they will lower the threshold and you might get a low a
 
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69
Reaction score
82
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For math: (68/75)*50= 45.33
Total= 45.33+30 = 75.33
You can calculate your own total what. And yes grade threshold depends on the whole world. If in the exam you score this mark for a easy exam, the grade will be a B i guess. However, if almost all candidates had a though time, then they will lower the threshold and you might get a low a
what is low a
 
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