Mathematics - 6 November 2007

1. What is the slope of ( y - 3 = 0 ) ?

2007-11-06 01:16:13 · 6 answers · asked by Anonymous

I seem to suck at calculus with trigonometric identities. Any suggestions?

2007-11-06 01:09:46 · 3 answers · asked by Anonymous

2007-11-06 01:08:55 · 7 answers · asked by Anonymous

If somebody has a 25% chance of a heart attack within the next 10 years, what are the chances of their having such an attack in any given year ? Am I right that the answer = 25/10 = 2.5 ? Or have I made a statistical gaffe ?

Would the probability change as the 10 years progressed ? If someone with a 25% chance in 10 years hasn't had an attack by the 9th year, would they be more at risk in the final year ? I'm inclined to say 'no' but might a different probability apply to a random year from a final year when nothing had happened so far ? Excuse me, please, if the question is statistically ignorant.

Btw : the person isn't me.

2007-11-06 01:08:12 · 1 answers · asked by Anonymous

Let "u" and "v" be two non-negative numbers, whose sum is 10. Find the maximum value of "u^2*v". Determine "u" and "v" when the maximum is attained.

2007-11-06 00:42:57 · 4 answers · asked by bradm_127 1

I have 50 problems but 2 have stumped me umm they are 3x^2-11x-4 and 8x^2+2x+3

2007-11-06 00:34:32 · 7 answers · asked by Anonymous

suppose that * is an associative and commulative binary operations on a set S, show that H = {a element s such that a * a = a} is closed under *

* means asteris as the binary operation...

2007-11-06 00:19:51 · 1 answers · asked by Anonymous

1. f(x)=x^2-5x+6
2. f(x)=x^2-10x+21
3. f(x)=x^2-x-6
4. f(x)=x^2-2x+4
5. f(x)=2x^2-x+6
6. f(x)=6x^2-x+2
7. f(x)=x^2+4x-5
8. f(x)=2x^2+2x-4
9. f(x)= -x^2+4x-3
10. f(x)= -x^2-5x-3
pls answer with complete solution...

2007-11-06 00:15:31 · 4 answers · asked by Anonymous

suppose that * is an associative and commulative binary operations on a set S, show that H = {a element s such that a * a = a} is closed under *

* means asteris as the binary operation...

2007-11-06 00:14:09 · 3 answers · asked by Anonymous