stuck_in_mud

hi, this question is about quadratic programming, and im trying to formulate this problem, but having no luck with it,

the problem is:

A company produces 2 types of products A and B, it costs the company £40 to make product a and £70 to make product B. from research it is suggested that if the seeling price of A and B are set as c and D then they will sell x of A and Y of B, given by the realtionship:

c = £220 - 3x and d = £250-2y.

How would i formulate this problem to give me the answer as:

max: -3x^2-2y^2+180x+180y.

Please help

hi, im really confused on how to rearrange the following equation (given in attachement) the pi is actually the product and not the value 22/7.

by using e^r=1+r

to 1-e^-r

Can someone help me please.

i think your stuck in the mud lol )

lol

im doing fairly advanced stuff.

i've tried the books, ive tried the internet, but i cant find any thing on it.

how would you go about doing this any way?

i need to find the different types of geometrical objects that are represented by the different subspaces of v3® and v4®.

hi,

im doing stuff on the gemetrical objects in the subspaces of v3® and v4®, and how they are represented.

i'm confused as i don't understand how i am supposed to show this.

can someone please help me!!!

Thanks

hello,

i'm studying vectors, and i have come across spanning, linear independency and bases.

i have two bases in v3® which are

1) (1,0,0) , (0,1,0) , (0,0,1)

2) (1,0,3) , (2,1,4) , (1,0,0)

i have shown these to be linearly independent as this is one of the points that must be met for a base to occur.

The second point is to show that they are spans of their own set, for this i know they must have some linear combination.

This is the bit that is confusing me, how can i show the linear combinations, basically how do i prove the second point of having a base.

Any ideas?