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## gary's Content

There have been 535 items by gary (Search limited from 29-November 21)

### #16986 2004 Paper 2 Q 11.

Posted by gary on 26 March 2005 - 06:28 PM in Problem Questions

F(x) comes from the formula 2x- 0.5x2 but where does g(x) come from?

### #16990 2004 Paper 2 Q 11.

Posted by gary on 26 March 2005 - 07:59 PM in Problem Questions

f(x) - g(x)

is that the standard equation you use, f(x) = 2x- 0.5x2 how would you get the g(x) equation.

### #6921 INT 2 TUTOR

Posted by gary on 10 October 2004 - 10:26 AM in Mathematics

I don't know any tutors but sorry.

### #49710 Books For Sale

Posted by gary on 16 August 2005 - 02:21 PM in New Sixth Years

Higher History 2000-2005

Higher Mathematics 2000-2005

Higher English 2001-2005

Revision:

Leckie and Leckie Higher Mathematics Course Notes

Leckie and Leckie Questions In Higher Mathematics

Leckie and Leckie Higher Physics Course Notes

Leckie and Leckie Questions In Higher Physics

Leckie and Leckie Questions In Higher Chemistry

Leckie and Leckie Questions In Higher Chemistry

Leckie and Leckie Higher English Course Notes

Hodder Gibson How To Pass Higher Maths

Chemcord Revision Notes For Higher Chemistry

Chemcord Revision Notes For Higher Chemistry

Chemcord Revision Notes For Higher Physics

If you want to buy any of these just post here and I will arrange payment.

### #10581 What do you think you will get in the final exam?

Posted by gary on 04 December 2004 - 10:56 AM in Mathematics

### #49711 Books For Sale

Posted by gary on 16 August 2005 - 02:22 PM in Revision and Exams

Higher History 2000-2005

Higher Mathematics 2000-2005

Higher English 2001-2005

Revision:

Leckie and Leckie Higher Mathematics Course Notes

Leckie and Leckie Questions In Higher Mathematics

Leckie and Leckie Higher Physics Course Notes

Leckie and Leckie Questions In Higher Physics

Leckie and Leckie Questions In Higher Chemistry

Leckie and Leckie Questions In Higher Chemistry

Leckie and Leckie Higher English Course Notes

Hodder Gibson How To Pass Higher Maths

Chemcord Revision Notes For Higher Chemistry

Chemcord Revision Notes For Higher Chemistry

Chemcord Revision Notes For Higher Physics

If you want to buy any of these just post here and I will arrange payment.

### #23405 Recurrence Relations Help

Posted by gary on 15 May 2005 - 02:31 PM in Problem Questions

A drug in the body dissipates at the rate of 12% during each 10 minute period from the initial treatment.

If an initial does of 50 units is given how much of the does will be present in a patients boodstream after 1 hour.

### #23434 Recurrence Relations Help

Posted by gary on 15 May 2005 - 03:34 PM in Problem Questions

Thanks.

### #16991 Circles and tangents

Posted by gary on 26 March 2005 - 08:02 PM in Problem Questions

Rearrange the equation x-3y = 6 which would give you x = 3y+6.

Then substitute equation 1 into 2.

Simple from there on the values should work out to 0 if you use the descriminant and equal if you use it the other way.

I don't understand what part b is asking.

### #10661 Quadratics Questions

Posted by gary on 05 December 2004 - 01:56 PM in Mathematics

### #9255 Differentiation

Posted by gary on 13 November 2004 - 10:52 PM in Mathematics

In the diagram the rectangle ABCD represents the outside of the case which measures 40 cm by 30 cm. The triangle within the rectangle represents the blue plastic triangle which is placed so that the lengths of the lines AE and DF are x centimetres and 2x centimetres respectively.

A show that the area S square centimetres of the triangle CEF is given by s(x) = 600 - 30x x x2

(b) Show the interval of values of x on which the function s(x) is defined.

© use calculus to find the greatest and least possible values for the area of triangle cef.

peakland plastics manufacture food containers which have a square base and are cuboid in shape. The sides and base are made of rigid plastic and the lid is made of flexible plastic. the company decide to add a new size of container to this range. it is to have a volume of 4000 cubic centimetres.

(a) if x centimetres is the length of each edge of the base of this container. show that the total area h centimetres of the rigid plastic used is given by

h = x2 + 16000/x

(b) find the dimensions of the container which ensure that the minimum possible area of rigid plastic is used.

### #10678 Quadratics Questions

Posted by gary on 05 December 2004 - 03:16 PM in Mathematics

-x(^2) - 4x + 1.

I'm still confused with the first question this is how I have done it:

-1 ( x(^2) - 50x - 475)

-1 ( (x-25)squared - 475 - 25(^2)

-1 ( (x-25)squared - 475 - 625)

1100 (x-25)squared

Thanks if you help again I'm just confused by the whole quadratic topic.

### #10683 Quadratics Questions

Posted by gary on 05 December 2004 - 03:51 PM in Mathematics

### #23581 2001 Paper 1 Q. 10

Posted by gary on 16 May 2005 - 10:03 AM in Problem Questions

### #23646 2001 Paper 1 Q. 10

Posted by gary on 16 May 2005 - 01:34 PM in Problem Questions

### #24933 2002 Winter diet paper 2 Q.10

Posted by gary on 19 May 2005 - 02:11 PM in Problem Questions

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