There was one question about a cuboid and the angle AH makes with the base.....can't remember what i got exactly but i think it was like 62.5 or something around that
The 3d trig/pythagerous? I think i got 20 something...:/
No offence kid but I'm predicted 7A* 3A's and already have a dentistry course lined up..... Good look shovelling s*** for the rest of your life f**. Don't worry kid someone will adopt you some day
Please help us get together an unofficial mark scheme for the Edexcel IGCSE Mathematics A HIGHER TIER exam today. If you can remember any questions/answers (preferably with question numbers) please post below. Please note that the questions which are currently empty are labelled 'not done' and will be filled in ASAP. Many thanks.
Question 1
Spoiler
Question 2(not done)
Spoiler
Question 3
Spoiler
Question 4 (not done)
Spoiler
Question 5 (not done)
Spoiler
Question 6 (not done)
Spoiler
Question 7 (not done)
Spoiler
Question 8 (not done)
Spoiler
Question 9 (not done)
Spoiler
Question 10
Spoiler
Question 11 (not done)
Spoiler
Question 12 (not done)
Spoiler
Question 13 (not done)
Spoiler
Question 14 (not done)
Spoiler
Question 15 (not done)
Spoiler
Question 16 (not done)
Spoiler
Question 17 (not done)
Spoiler
Question 18 (not done)
Spoiler
Question 19 (not done)
Spoiler
Question 20
Spoiler
Question 21
Spoiler
Question 22
Spoiler
[Probability one was 0.298. Angles one was 63. Cube and sphere one was 1637.]
If you remember the question numbers please let me know, thanks. I cant remember question numbers but the question about the particle - what the velocity is and the time where it equalled 0, the cumulative frequency table, graph and number over 85kg and IQ range, the question asking for the equation of a line parallel to the line we were given the coordinates for
What do people think the grade boundary for an a* will be?? Cause for the January paper is was something like 76 but idk if this one was harder or easier?!
Guys, for the cube and the sphere question, does anybody remember the length of the Cube's sides? I think I found the lower bound for the sphere's volume and then I used the upper bound for the cube's volume and I divided them.
How is the answer 18? (I don't mean it in a rude way, I'm genuinely asking)
You were given 4.5cm which you have to convert to MM via the multiplication of 10, giving you 45cm. The upper bound value of 45 is 45.5, hence you have 45.5MM Divide this by your MM value, which was 3. This needs to be a lower bound to produce a maximum value and so you should divide by 2.5MM ( question stated 3MM to nearest MILIMETRE). This would have given you 18
Guys, for the cube and the sphere question, does anybody remember the length of the Cube's sides? I think I found the lower bound for the sphere's volume and then I used the upper bound for the cube's volume and I divided them.
You were given 4.5cm which you have to convert to MM via the multiplication of 10, giving you 45cm. The upper bound value of 45 is 45.5, hence you have 45.5MM Divide this by your MM value, which was 3. This needs to be a lower bound to produce a maximum value and so you should divide by 2.5MM ( question stated 3MM to nearest MILIMETRE). This would have given you 18
It was 4.5cm to the nearest 0.5cm so if you were to convert it, it would become 45mm not cm like you said. Also, as it was to the nearest 0.5cm the upper bound would have been 4.75cm which is not 45.5mm when converted
Overall, this thread has made me really confident now. I thought I had messed up the circle theorem question (somehow) and that was worth like 4 or 5 marks! Now I think the only questions I'm certain I have messed up are the sphere-->cube and the parallel line question. Good job on remembering the exact measurements and answers guys!