Did anyone get something like 20x^2+20x+5 = 20x^2+21x-5 In the end question. I was stuck on this bit for ages and then I realized -5 from -5 is 10. Lol.
ooo, for the upper/lower bound questions i got the correct answers, i just decided to round up to 4 cause of 1dp,
would i still get the marks?
If you calculated upper bound as 3.61... and lower bound as 3.59.. then you would probably get 3/4 marks. 3.6 is the final answer and had to give reasons.
I think so. for area of sector i did angle/360 X r^2pie Then I use the area of triangle rule to find the area. Finally subtract area of sector from area of triangle
I think so. for area of sector i did angle/360 X r^2pie Then I use the area of triangle rule to find the area. Finally subtract area of sector from area of triangle
yes if your quadratic equation was simplified
yeah i did that and i simplified to x=5 an thanks for replyin
i got working out but left it as 5!! will i still get marks
yeah, you should get all the working marks because usually it's only one mark for the correct answer and the rest of the marks for the working.. so thats like 4 marks