Algebra Answers

the first and last term of AP are a and l respectively. If S is the sum of all the terms of the AP and the common difference is given by (l^2-a^2)/k-(l+a) , then k = ?

if AB = 26 cm, what is AC?

cost R353500 , overall cost R45000 and mark up 22% on sale

how much profit?

Help please. Suppose you borrow $10,000 at 10% P.A. and the payments get too much to handle, so you borrow Another 10,000 at 3% to pay off the first amount which was at 10%. Somehow this sounds like a Ponzi scam, but I can't seem to prove it. Does the above make sense, borrow more to of a big debt. My son did hat and is now over his head..help..

Factor completely:
x^4 - 6x^2 y^2 + 9y^4

1/6 - x/2= x-5/3

at a certain place a few cows,a few oxen and 45 hens have been kept.one man have been deputed to look after every 15 animals.number of oxen is double the number of cows.if the number of total heads is 186 less than number of legs,then how many men have been deputed for looking after animals

In one fortnight of a given month , there was a rainfall of 10 cm in a river valley. If the area of the valley is 97280km*1km , show that the total rainfall was approxiamtely equivalent to the addition to the normal water of three rivers each of dimensions 1072km*75m*3m.

• The value of m for which 2x+3y=11 , y=mx+3 , 2x-4y=-24 has common solution is?