Mathematics - 23 August 2007

What's the minimum that is considered vast majority?

2007-08-23 22:49:59 · 5 answers · asked by Anonymous

2007-08-23 22:30:55 · 15 answers · asked by Anonymous

Assume that a, b and c are positive integers.
Questions like this is not very easy to answer - as far as my math knowledge is concerned. :)

2007-08-23 21:55:40 · 6 answers · asked by John J 1

This is a serious question. Excel only works to 30 decimal places. But is there a way to work it out without actually working it out, ie. can you simply tell how many decimal places it would be by looking at the power its raised to?

2007-08-23 21:07:01 · 7 answers · asked by boyinlove2k 2

1) simplify the expression tan^2x - 2tanx+1/1+tan(-x)

2) use an identity to find the exact value of tan(pi/3+pi/4)

2007-08-23 21:00:31 · 2 answers · asked by BaleriaBaleyva<33 2

2007-08-23 20:56:04 · 2 answers · asked by quizzical 1

I spent FOREVER trying to figure out how to find the perfect square of an ellipse equation, AND I FINALLY FIGURED IT OUT! I was sooo excited. Then I looked at the original question: Find the center of the ellipse with the equation 3x^2+4y^2+18x-32y-5=0

I completed the square, and got (x+3)^2 OVER 32 + (y-4)^2 OVER 24 =1


you can obviously replace "OVER" with a fraction sign, I just had to do that so it didn't look like it was 2/32 or 2/24 or anything like that, so I hope it made sense!

My book says that the standard form of the equation of the ellipse is x^2/b^2+y^2/a^2=1, then it says b^2=a^2-c^2

I was thinking I could make my equation look like that by just finding the square roots of 32 and 24, but I thought about it, and they're not perfect squares, so they come out as really random numbers, so I'm guessing that's not what I'm supposed to do??

How do I find the center of this ellipse?! I've spent SO LONG on this problem it's frustrating me!!!!

THANKS!

2007-08-23 20:55:33 · 1 answers · asked by jamie68117 3

I am very interested in finding theconditions – if such conditions ever exist – that (ab)² + (ac)² + (bc)² is a perfect square.

Please help. Thanks!

2007-08-23 20:31:56 · 5 answers · asked by John J 1

2007-08-23 20:16:40 · 4 answers · asked by Anonymous

2007-08-23 19:53:46 · 1 answers · asked by elina 2

Solve for x.

2007-08-23 19:47:08 · 4 answers · asked by Anonymous

2007-08-23 19:02:52 · 5 answers · asked by ectrip78 1

2007-08-23 18:53:24 · 4 answers · asked by ChArLeNe N 1

2007-08-23 18:52:52 · 4 answers · asked by ChArLeNe N 1

2007-08-23 18:52:21 · 3 answers · asked by ChArLeNe N 1

2007-08-23 18:45:28 · 6 answers · asked by ChArLeNe N 1

2007-08-23 18:32:24 · 4 answers · asked by jen b 1

2007-08-23 18:31:09 · 5 answers · asked by jen b 1

2007-08-23 18:30:36 · 3 answers · asked by jen b 1

the six trig functions are: sin, cos, tan, csc, sec, & cot.

Thanks in advance to anyone who can help!!

2007-08-23 18:16:55 · 4 answers · asked by Nicole J 1

2007-08-23 18:16:51 · 4 answers · asked by mathstudent 2

Employees of a large company all choose 1 of 3 levels of health insurance coverage, for which premiums, denoted by x, are 1, 2, 3 respectively. Premiums are subject to a discount, denoted by y, of 0 for smokers and 1 for non-smokers. The joint probability density function of x and y is given by:

p(x,y) = { [(x² +y²)/31] for x = 1, 2, 3, and for y = 0, 1 }

0 otherwise

Calculate the Variance of (x – y), the total premium paid by a randomly chosen employee.

2007-08-23 18:00:13 · 2 answers · asked by Anonymous

Im having trouble solving this problem... I've been trying to solve it for the past two days but i simple cant. Please help me.

Express x in terms of the other variables in the picture.

to see the picture go to

http://www.math.unb.ca/ready/paper/img118.gif



Please provide an explanation on how to solve the problem. Thank You.

2007-08-23 17:56:36 · 3 answers · asked by senseless.student 1

There are two lines that pass through the point (3,0) and are tangent to the parabola f(x) = 9 x^2

One of those two lines is the x-axis. Find the equation for the other line. (Suggestion: First find the value of a shown on the graph).

I'm quite confused with this. Any suggestions?

2007-08-23 17:51:12 · 2 answers · asked by AppleCard! 2

x + 20 = y + 80. What is the value of xy.

2007-08-23 17:50:55 · 5 answers · asked by Bao 2

both are 3x3

1 1 1
a b c
a^2 b^2 c^2

multiplied by :

1 a a^2
1 b b^2
1 c c^2

2007-08-23 17:49:56 · 2 answers · asked by Anonymous

identify, by name, each polar graph.give at least one characteristic of each graph.
1. r=2
2. r=3sec(theta)
3. r=1+sin(theta)
4. r=2cos 3(theta)

2007-08-23 17:43:38 · 2 answers · asked by Anonymous

A*B
-------=X
A+B

I want to move A to other side of = and same thing to X.

2007-08-23 17:14:11 · 12 answers · asked by Mattman 6

2007-08-23 17:02:56 · 2 answers · asked by Anonymous

2007-08-23 16:56:05 · 1 answers · asked by leila_davies1986 1