Mathematics - 21 July 2006

How did universal mathematical laws evolve from or with the big bang? Can grasp how we are made from star dust but where were mathematics lurking/evolving, all that time?

2006-07-21 08:28:59 · 13 answers · asked by Anonymous

1. If 2x-5, x+1, and 3x-8 are all integers and x+1 is the median of
these integers, which of the following could be a value for X?
(A) 5
(B) 7
(C) 9
(D) 10
(E)11

2. If the xy-coordinate plane, the graph of x=y2 -4 intersects line L at (0,p) and (5,t). What is the greatest possible value of the slope of L ?
* y2 is y square

3. Esther drove to work in the morning at an average speed of 45 miles per hour. She returned home in the evening along the same route and averaged 30 miles per hour. If Esther spent a total of one hour commuting to and from work, how many miles did Esther dirve to work in the morning?


Number 1 answer is (A)
number 2 answer is 1
numbrr 3 answer is 18

what i want to know is how to solve all these question
so i want somebody who is capable of math to explain
how to figure them out.!!!!!!!!!!!!!!!!!!!!!!!!!

2006-07-21 08:23:51 · 7 answers · asked by Daine W 2

Ok Math fans, here's another challenge for you, a question that came up to my mind.
The first one to answer this correctly, with providing all the procedures of doing it, wins 10 whole points.
So here is the question:
Prove that { the difference between the two diagonals} times {the sum of the two diagonals} of any parallelogram equals to (4ab*cosx).
That is, prove that:
(d+f)(d-f) = (4ab)(cosx)
where d is the long diagonal, and f is the short one.
a and b are the two different sides of the parallelogram, and x is the small angle between those two sides. Assume that the other angle is (180 -x).
After providing the proof, give an example.
So, as said, "survival of the fastest!" Nice quote.

2006-07-21 07:43:41 · 4 answers · asked by Anonymous

the distance of line basically uses pythagorean theorm. is there a way to solve this without using the sqrt function?

d = sqrt (dX^2 + dY^2)

2006-07-21 07:29:02 · 10 answers · asked by george_a_lutz 1

2006-07-21 06:58:47 · 8 answers · asked by count alucard 5

dove bar

2006-07-21 06:51:16 · 15 answers · asked by kramaster 5

I assume it's scientific notation for keyboards or something, but raelly haven't a clue.

2006-07-21 06:49:48 · 3 answers · asked by LazlaHollyfeld 6

P(x) = 30(x + 1)^1/2 - 3x - 30

For what number of jets is the profit maximized?

2006-07-21 06:33:18 · 2 answers · asked by Olivia 4

2006-07-21 06:12:47 · 26 answers · asked by jwater28 1

Hall rental fees.

C = 2n + 20

People Cost

1 $22
2 $24
3 $26
4 $28

What kind of sequence is illustrated in this table?

an arithmetic sequence, aka a linear sequence

The manager tells Monica that during the last 40 days, the hall has been rented 40 times. The number of guests for those 40 rentals can be arranged to form the following sequence:

11,12,13, ..., 49,50

What is the total amount of money collected by the hall manager for those 40 days?

2006-07-21 05:54:17 · 3 answers · asked by zoso_arivolk 1

(-∞, -5] U [5,∞)

AND:

For another problem with an absolute value equation I got quickmath.com to solve it for me, but I have to choose between two good answers: {7,3/5} or {7,-3/5}. The problem was; |3y+2|=|2y-5|

2006-07-21 05:26:43 · 6 answers · asked by Brandon ツ 3

2006-07-21 05:16:39 · 6 answers · asked by segun951175 1

If you take 7, then 17 & than 8 from me, you have 160. but if you take 6, than 17, then 8 from me, you have 170. finally if you take 1, than 4 then1 from me, you have 762. What am I ?

2006-07-21 05:14:51 · 16 answers · asked by Anonymous

Take equation C = 2n + 20 and use it to fill in this table..

People Cost

1 $22
2 $24
3 $26
4 $28

done.

What kind of sequence is illustrated in this table?

2006-07-21 05:11:03 · 5 answers · asked by zoso_arivolk 1

3|x+2|-2>7

Please give the final answer in a interval form:

(example,example) U (example,example)

2006-07-21 04:52:29 · 14 answers · asked by Brandon ツ 3

Electron,protons ,quarks masses?

2006-07-21 04:40:09 · 7 answers · asked by goring 6

2006-07-21 04:31:53 · 11 answers · asked by Anonymous

i need a simple formula for this type of question.........

3 boys can dig 5 wells in 2 days
how many wells can 2 boys dig in 3 days?
sometimes you can be asked to tell the number of boys or days.
i need a simple and general formula

2006-07-21 02:46:48 · 13 answers · asked by Omar 1

2006-07-21 02:08:29 · 11 answers · asked by Tom 2

Please simplify this equation. I know the right answer is √3, but I don't know how to process it.

Please help me to figure out this question. Thank you very much.

2006-07-21 01:32:21 · 9 answers · asked by Claire 1

2006-07-21 01:28:53 · 14 answers · asked by Anonymous

2006-07-21 00:35:46 · 5 answers · asked by Anonymous