Science & Mathematics - 31 August 2007

forest

2007-08-31 00:43:49 · 1 answers · asked by awoooooh.... 1 in Biology

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 in Mathematics

2007-08-31 00:38:17 · 1 answers · asked by Anonymous in Earth Sciences & Geology

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 in Mathematics

2007-08-31 00:35:33 · 15 answers · asked by Nand 2 in Astronomy & Space

even just in small amounts. let say 30g to 50g.

2007-08-31 00:15:52 · 5 answers · asked by quackie81 3 in Chemistry

2007-08-31 00:12:39 · 8 answers · asked by Anonymous in Astronomy & Space

Please kindly , in one or two differences .... even just clues

2007-08-31 00:11:58 · 8 answers · asked by The Assistant 1 in Engineering

hi all...it is said that constructive interference happens when the path difference is nlambda and i think wavelength,frequency and amplitude of light going through both slits is the same then
why is the central maxima is the brightest spot?
why the brightness decreases when n increases?

Since the amplitude is same why there is difference in the brightness of the bright fringes?

2007-08-31 00:06:27 · 3 answers · asked by Anonymous in Physics