- Messages
- 869
- Reaction score
- 374
- Points
- 73
tankkkkk uuuuuuuuuuExactly!! If it started from the origin, then 'a' would have been equal to 9. You could tell that just by looking at the graph.
We are currently struggling to cover the operational costs of Xtremepapers, as a result we might have to shut this website down. Please donate if we have helped you and help make a difference in other students' lives!
Click here to Donate Now (View Announcement)
tankkkkk uuuuuuuuuuExactly!! If it started from the origin, then 'a' would have been equal to 9. You could tell that just by looking at the graph.
There is no part 3 to that question.http://www.xtremepapers.com/papers/...S Level/Mathematics (9709)/9709_w11_qp_12.pdf
http://www.xtremepapers.com/papers/...S Level/Mathematics (9709)/9709_w11_ms_12.pdf
please explain question 3 part (iii)
@dug : can you help me with this.thanks
Guys, can somebody please help me? This is the third time I'm asking this.
Qs.1) Find the values of k such that the straight line y=2x+k meets the curve with equation x^2+2xy+y^2=5 exactly once.
Qs.2) An Open cylindrical wastepaper bin, of radius r cm and capacity Vcm^3 is to have a surface area of 5000 cm^3.
(a) Show that V=1/2r(5000πr^2)
(b) Calculate the maximum possible capacity of the bin.
Qs.3) Find the equation of the normal to the curve y=8/1-x^3 at the point (-1,4)
Yes sorry! My mistake.In Q2, isn't it V=1/2r (5000-pi r^2)
Ok lets see...Try asking one question at a time. I mean divide your problems as that would make it easier for me to answer and for you to understand.I Have the only thing remaining is functions and as 2 days are left i cant get it from any book thats y i asked u
For Q2:Yes sorry! My mistake.
CAN U TELL ME IN OLEVEL LOCI THERE IS QUESTION BISECT LINE ABC?For Q2:
S.A=2πrh + πr^2
2πrh + πr^2 = 5000
h = (5000-πr^2)/2πr
V=πr^2h
V=πr^2 [(5000-πr^2)/2πr]
V=2500r - πr^3 / 2
V=(1/2)(r)(5000-πr^2)
For Q2 part bGuys, can somebody please help me? This is the third time I'm asking this.
Qs.1) Find the values of k such that the straight line y=2x+k meets the curve with equation x^2+2xy+y^2=5 exactly once.
Qs.2) An Open cylindrical wastepaper bin, of radius r cm and capacity Vcm^3 is to have a surface area of 5000 cm^3.
(a) Show that V=1/2r(5000πr^2)
(b) Calculate the maximum possible capacity of the bin.
Qs.3) Find the equation of the normal to the curve y=8/1-x^3 at the point (-1,4)
Sorry, I couldn't get you.CAN U TELL ME IN OLEVEL LOCI THERE IS QUESTION BISECT LINE ABC?
Are you implying that i am wasting his time?@roadtrip9o9
Core maths has some really good explanations for functions and graphs. min and max is also eplained well in that book.i suggest you get that. You'l waste time here. and wont get the whole picture.
There is no part 3 to that question.
The answer is 38500 cm^3.For Q2 part b
Set dV/dr = 0
You get r = 530.5
Find an expression for second derivative and insert this value of r.If you get a maxima with this value, put this value in the v=1/2r(5000-πr^2). I don't know if its correct. Whats the answer for this question?
For Q3)Guys, can somebody please help me? This is the third time I'm asking this.
Qs.1) Find the values of k such that the straight line y=2x+k meets the curve with equation x^2+2xy+y^2=5 exactly once.
Qs.2) An Open cylindrical wastepaper bin, of radius r cm and capacity Vcm^3 is to have a surface area of 5000 cm^3.
(a) Show that V=1/2r(5000πr^2)
(b) Calculate the maximum possible capacity of the bin.
Qs.3) Find the equation of the normal to the curve y=8/1-x^3 at the point (-1,4)
Wait...recheckingThe answer is 38500 cm^3.
For almost 10 years, the site XtremePapers has been trying very hard to serve its users.
However, we are now struggling to cover its operational costs due to unforeseen circumstances. If we helped you in any way, kindly contribute and be the part of this effort. No act of kindness, no matter how small, is ever wasted.
Click here to Donate Now