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Mathematics - 8 June 2007

[Selected]: All categories Science & Mathematics Mathematics

I've been out of school for a long time..

2007-06-08 02:57:47 · 5 answers · asked by Me 3

The radius of Earth is 6 370 000 m. Express this measurement in km in scientific notation with the correct number of significant digits.

2007-06-08 02:41:06 · 6 answers · asked by Anonymous

as in 2x - 6 = 7
5

2007-06-08 02:40:12 · 12 answers · asked by brandoleigh 3

I need to write the equation x(x-15) +56 = 0 in quadratic form and the solve by factoring, I think the answer is -8 and 7 but I am not sure can anyone help?

2007-06-08 02:22:53 · 6 answers · asked by mamacitasue 1

I need to solve the equation y^2 -6y + 8 = 0 can anyone help?

2007-06-08 02:15:10 · 8 answers · asked by mamacitasue 1

I always confuse a concept .....here i am posting it as a math problem.

suppose,

In 1 min, 6 machines can produce : 270 bottles

Then
In 1 min, 1 machine can produce :

(1)270/6

(2)270 *6 bottles ?

which is correct ? i confuse whether i need to multiply or divide .

It seems here i need to divide because obviously 1 machine will produce less number of bottles ...............BUT i have noticed in some problems we multiply .....i dont understand when to multiply and when to divide ................can anybody explain this stuff with some example ?

Thank you

2007-06-08 01:52:01 · 9 answers · asked by sanko 1

wwhat is the smallest integer value of x which satisfies the inequality 3x+4 is more than/ equal to: 2

2007-06-08 00:53:17 · 10 answers · asked by AV 3

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