Mathematics - 21 August 2007

2007-08-21 04:04:38 · 5 answers · asked by Anonymous

logy = 1/4 log16 +1/2 log49

log6(base)(b^2 + 2) + log6(base)2 = 2

log3(base)(5x+5) - log3(base)(x^2 - 1) = 0

2007-08-21 03:50:05 · 2 answers · asked by Anonymous

what is the answer to 18 - 4k = -10 - 4k (eighteen minus fourK equals negative ten minus fourK.) i have to solve for K.

2007-08-21 03:41:46 · 13 answers · asked by ♥ alexa ♥ 2

Write the equation of the line.

Through (9, -7),
perpendicular to 5x + 4y = 17

2007-08-21 03:39:18 · 2 answers · asked by Anonymous

Determine whether or not the equation has a circle as its graph.

x2 + 6x + y2 + 8y + 30 = 0

2007-08-21 03:37:51 · 5 answers · asked by Anonymous

of this cube, in cubic meters?

i'm cluless. the book says sq.root x times x

2007-08-21 03:28:51 · 7 answers · asked by Anonymous

the st.line x+y=1 cuts the co-ordinate axes at P&Q and a line perpendicular to this cuts axes at R&S.find the locus of intersection of the line PS & QR? [IIT]

2007-08-21 03:11:03 · 1 answers · asked by Anonymous

i hate it so much because i dont understand anything of it and im worried im going to fail?? Waht can i do to make ti easier? i study alot but i still dont get it

2007-08-21 03:09:19 · 5 answers · asked by Marie 1

2007-08-21 02:38:31 · 2 answers · asked by Anonymous

The series 6 + 3 + 3/2 + 3/4 +... converges to the sum...?

I have been trying and I can't figure out how to solve this problem. =(

I want to make this clear: I am not looking for the answer, just some help. Thanks!

2007-08-21 02:23:53 · 5 answers · asked by Jenny V. 2

Tim has 28 coins made up of nickels, dimes and quarter. He has four more dimes than nickels and quarters combined. How many each kind of coin does he have if their toal value is $ 3.20.

2007-08-21 01:57:41 · 6 answers · asked by raviprab54 1

1. What must be the value of m so that x+y is a factor of x^m - y^m?

2. Show that x-t is a factor of x^n - t^n for any positive integer n.

3. Show that x+t is a factor of x^n + t^n for any positive odd integer n.

I don't know how to do no.1 using this theorem, although I do know the answer. And are there any special things to note for nos. 2 and 3, or do I simply show that if P(x) is the polynomial and x-t is a factor, then P(t) = 0?

Thanks!

2007-08-21 01:51:55 · 3 answers · asked by nandemonai 2

1.) A rectangular garden has a length which is 4m more than its width. A 2m wide path surrounds this garden. The area of the garden plus the path is 77m sq.Find the dimensions of the garden. Show working.



2.) A garden plot 5m by 15m has one of its longer sides next to a wall. The area of the plot is to be doubled by digging up a stip of uniform width along the other three sides. How wide should this strip be? Show working.

...Please reply within the next two hours. Thanks in advance!

2007-08-21 01:32:27 · 6 answers · asked by Anonymous

adding and subtracting rational expressions


1.24/7-21/2+11/14

2.7/2-1/6-5/9+7/3

3.3/x+5/2x-11/3x

4.k-4h+2/2k+4k+3h-1/7k


please help!!!!!!!!!math geniusesssssss!!!!!!!1

2007-08-21 01:08:17 · 8 answers · asked by no__one 1

What exactly is a partial fraction anyway?

What does the term "Partial Fraction Decomposition" mean anyway?

Write the partial fraction decomposition of each rational expression.

(1) 3x/(x + 2)(x - 1)

(2) (x^5 + 1)/(x^6 - x^4)

2007-08-21 01:07:53 · 3 answers · asked by journey 1

Mark McGuire hit a baseball with an initial speed of 180 feet per second at an angle of 40 degrees to the horizontal. The ball was hit at a height of 3 feet of the ground.

(a) When is the ball at its maximum height? Determine height of the ball.

(b) Determine the distance that the ball travels.

2007-08-21 01:02:52 · 2 answers · asked by journey 1

solve 2x+2x-3z=5
4y+3x+5y=4
and
3y+4x+5z=3

pls solve this by gauss jordan and determinant!
pls show ur solutions! tnx in advance!

2007-08-21 00:54:54 · 1 answers · asked by bryan l 1