Mathematics - 31 August 2007

2007-08-31 04:05:45 · 5 answers · asked by Anonymous

2007-08-31 04:05:20 · 1 answers · asked by Anonymous

2007-08-31 04:04:51 · 2 answers · asked by Anonymous

2007-08-31 04:03:50 · 2 answers · asked by Anonymous

2007-08-31 03:40:24 · 8 answers · asked by pinkparadiseforever 2

A. 12x^2+18
B. 5x^2+23x+18
C. 12x^2+6
D. 5x^2+7x+6

2007-08-31 03:30:04 · 8 answers · asked by BH 1

2007-08-31 02:41:58 · 18 answers · asked by cutegemini 2

1) If the longer base of an isosceles trapezium equals a diagonal and the shorter base equals the altitude, prove that the ratio of the shorter base to the longer base is 3 : 5

2) In a triangle ABC, the in-circle touches the sides BC, CA and AB at D, E and F respectively. If the radius of the in-circle is 4 units and if BD, CE and AF are consecutive integers, find AB, BC and CA.

I'll give a hint for the second one:
Use BD = x - 1, CE = x, AF = x + 1
Area of triangle = (1/2) * (In-radius) * (Perimeter)

2007-08-31 02:37:02 · 2 answers · asked by Akilesh - Internet Undertaker 7

2007-08-31 02:31:43 · 7 answers · asked by Jevon H 1

1. (sqrt(x+4) - 3)/(x-5)

2. (sqrt(x+4) - 3)/(sqrt(x-5))

I've started out by multiplying both functions by the conjugate of (sqrt(x+4)+3) but I still have the problem of having (x-5) on the bottom which gives me an answer of undefined.

How do I get rid of (x-5)?

2007-08-31 02:25:49 · 4 answers · asked by Anonymous

Please help me out.

2007-08-31 02:22:21 · 3 answers · asked by Kim M 1

A metallic sheet is8m by 5m. Its thickness is 3 cm. If the metal weighs 3.6 per cm cubed, then its total weight is
A. 4,32 kg
B. 43.2kg
C.432kg
d.4 320kg
e. 43200kg

2007-08-31 02:07:54 · 6 answers · asked by Anonymous

2007-08-31 01:28:42 · 9 answers · asked by Anonymous

Can anyone help me to solve this sum

Use the compound angle formulae to find the following in surd form:
1) tan 75
2) tan 285

2007-08-31 01:19:46 · 3 answers · asked by Farabi 1

lim sin(h) / h=1
as approaches to 0.

can anyone give me the solution why its limit is equal to 1.

2007-08-31 01:02:37 · 7 answers · asked by dee j 2

Math wizards is this equation seriously right?


thanks in advance for your answer/s! ^.^

2007-08-31 01:00:20 · 16 answers · asked by nicole 2

Simplify: 2(x - 3) + 6 divided by 2

This is in fraction form and the 2(x - 3) + 6 is the top line and the 2 is the bottom line.

Thanks!

2007-08-31 00:42:34 · 16 answers · asked by Pete 1

I need help determining if these systems of equations are dependent, independent or inconsistent.

These first two systems of equations needed to be solved by the substitution method.

Thanks!

y = 3x + 11
2x + 3y = 0

x = y + 5
2x – 2y = 12

These next two systems of equations needed to be solved by the addition method.

5x – 3y = -20
3x + 2y = 7

2(y – 5) + 4 = 3(x – 6)
3x -2y = 12

2007-08-31 00:36:42 · 2 answers · asked by Pete 1