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#94851 Trig Question

Posted by John on 14 March 2007 - 10:41 PM in Mathematics

cos(x+15) = 2/3

take the cos over to the other side to get

x+15 = cos^-1(2/3)
x+15 = 48.1897

then solve for x

x = 48.1897 - 15
x = 33.1897

x is in degrees btw

#94938 circles

Posted by John on 17 March 2007 - 06:40 PM in Mathematics

start by finding the equation of the radius

from there you find the line perpendicular to to the radius

I think you can go on from there.

#91463 Integration

Posted by John on 02 December 2006 - 07:14 PM in Mathematics

For the first one:

Break the fraction up and use the rules opf indices to simplify and then integrate.

For the second one:

Multiply out the bracket and do the same from there as you did with the first one.

I know there is a simpler way, but i cant remember how to do it.

#94187 Help with a past paper question

Posted by John on 21 February 2007 - 07:45 PM in Mathematics

Use the chain rule on the trig part, and standard differentiation on the latter

#91043 Another quadratics question.

Posted by John on 17 November 2006 - 03:04 PM in Problem Questions

You are correct.

Now what you need to do is subsitute x and y for the co-ordinate (0,18).

And then solve for a.

Tell me what you get for your answer and I'll let you know if it is correct.

#92119 [Quadratic Theory] h/w

Posted by John on 17 December 2006 - 12:27 PM in Problem Questions

A product is the answer from multiplying two or more numbers together, not the summation of two or more numbers.

For question seven use b2 - 4ac = a negative number, to find the smallest possible integer value for K.

#91618 Housing Associations

Posted by John on 05 December 2006 - 05:20 PM in Geography

Some are private companies such as Partick Housing Association Ltd, and then others just manage the stock on behalf of a larger organisation(This is the way GHA works afaik).

With the first case, i would assume if they have shares available, anyone, other wise an individual/group.

If you want to know any more I'll just ask my mum, she's on the board for a Housing Association or Local Housing Organisation, one of the two i can't remember lol

#91639 Housing Associations

Posted by John on 05 December 2006 - 10:03 PM in Geography

By shares i just meant that people are able to be a member of that company, but some of the Housing Associations are probably Profit making organisations.

#91588 Housing Associations

Posted by John on 04 December 2006 - 11:51 PM in Geography

By moving social housing stock from a local government to a housing association allows the housing stock to be managed more efficiently.

This is possible as the organisation is set up specifically to deal with the housing stock, with no interference from the local government.

It also means that the rent you pay is GUARANTEED to go towards the housing stock, whether it be to pay for people to manage it, to fund repairs and regeneration, or to simply keep the tenements and high rise flats clean and tidy in communal areas.

Although repairs and cleansing are normally outsourced to the local government. Which is what happens with GHA managed stock in Glasgow.

But what would be most important to the people, is that they can have a much greater say in the running of their Landlord.

Also, i think this belongs in the Modern Studies forum more than Geography.

#92710 unit 2 - outcome 3 - trigonometry

Posted by John on 11 January 2007 - 08:06 PM in Problem Questions

convert the radians to degrees, do the equation, and then convert the answer back to radians.

#90163 Trig help

Posted by John on 13 October 2006 - 06:53 PM in Mathematics

I've been asked this question in my uni homework and not sure how to expand it.

Expand sin(A + B + C) in terms of sin A, sin B, sin C, cos A, cos B, cos C.

How would i tackle this?

They also ask the same for cos(A + B + C)

Thankies =D

#93634 Can someone go over a past paper with me, as im struggling and have an exam o...

Posted by John on 03 February 2007 - 08:59 PM in Mathematics

Add me, I'll do my best to help.

MSN address is in my profile

#91309 Question

Posted by John on 27 November 2006 - 10:40 PM in Mathematics

Take the 2 SINs over to the RHS to leave the 2 x terms on the LHS and solve for x.

Post your solution if you think the answer is incorrect.

#99184 Need a little Help.

Posted by John on 04 June 2007 - 06:41 PM in Mathematics

Reinstall your PDF viewer

#90079 A Halloween Treat

Posted by John on 10 October 2006 - 08:39 PM in General Chat

Happens in Glasgow too....

#90461 A Halloween Treat

Posted by John on 27 October 2006 - 03:34 PM in General Chat

I'm going to a gig on halloween lol

#92844 unit 1 - non calculater revision - composite functions?

Posted by John on 16 January 2007 - 11:46 AM in Problem Questions

for b Integrate f'(x) and h(x) will either be f(g(x)) or g(f(x))

#93023 Scottish schools to show climate change film

Posted by John on 18 January 2007 - 09:08 PM in Geography

I think my mate is doing a voice over that that video.

#90389 Greatest TV/movie fight scenes?

Posted by John on 24 October 2006 - 05:17 PM in General Chat

Beauty and The Beast!!!

#92128 Social exclusion

Posted by John on 17 December 2006 - 04:04 PM in Modern Studies

Is this on the USA topic?

#92133 Social exclusion

Posted by John on 17 December 2006 - 05:20 PM in Modern Studies

Hmm cant help you there then, as i don't know what they cover in the new study theme.

#91638 Btw......this unit I've been "doing" for the past few weeks....

Posted by John on 05 December 2006 - 10:01 PM in Mathematics

I recommend FoxIt Reader 2.0 it's better biggrin.gif

And all you really need to know about Integration from Unit 2 is

Raise the power and divide by that new power.

#91001 Given the gradient and finding the equation?

Posted by John on 15 November 2006 - 08:56 PM in Mathematics

To find the equation of the tangent to a curve you narmally differentiate.

So do that, you know that dy/dx = 2 so find what dy/dx is and solve it for 2.

So after that you have the x co-ordinate, plug that into the equation of the curve and use the answer from that for the y co-ordinate.

After that use the formula y-b=m(x-a)

Does that make any sense to you?

#91003 Given the gradient and finding the equation?

Posted by John on 15 November 2006 - 09:12 PM in Mathematics

the discrminant (b2-4ac) only tells you the nature of the roots of the quadratic

#91408 Quadratic question

Posted by John on 30 November 2006 - 09:06 PM in Mathematics

In this case i would use calculus first to find the turning point.

Then solve

3x power2.gif - 15x + 11= a(x+b) power2.gif + c

for a.