Mathematics - 3 July 2007

This is a word problem of Mathematics

2007-07-03 08:14:30 · 9 answers · asked by Anonymous

2007-07-03 07:53:04 · 3 answers · asked by Anonymous

it should be more than 1 bcoz except 1 mutiplied by 0 all the numbers are more than 1

2007-07-03 07:23:54 · 22 answers · asked by paavni 2

This is less of a question, and more of a surprising statement, but does anyone agree with this? Here is the problem in question:

x = 0.9999...
10x = 9.9999...
10x-x = 9
9x = 9
x = 1

(Sorry about the '=' signs not lining up, the software has done this)

Now look at how the first and last answer vary. If I started with 'x' equalling 0.9999 recurring, how does the last answer mean 'x' equals 1?

Any answers?

P.S. Please stay away if you do not have a real answer (genuine statements only please)

2007-07-03 07:23:13 · 12 answers · asked by Anonymous

Solve the Equation.

1.2/5-3/x=1/5x
2.3/x+1-1/x=1/2
Sketch a graph of the Fuction.
3.y=1/x-3
4.y=1/x+1+1

2007-07-03 07:10:23 · 3 answers · asked by Berry A 2

Answer these- some are True or false Questions.
1a. Is there a transfinite number between that of a Denumerable Set and the numbers of the Continuum ?
1b. Can the Continuum of numbers be considered a Well-Ordered Set?
2. Can the axioms of logic be proven to be consistent?
3. Are there two tetrahedra which cannot be decomposed into congruent tetrahedra directly or by adjoining congruent tetrahedra.
4. If the ordering and incidence axioms are retained, the congruence axioms weakened, and the equivalent of the Parallel Postulate omitted, finds whose axioms are closest to those of Euclidean Geometry.
5. Can the assumption of differentability for functions defining a continuous transformation group be avoided?
6. Can physics be axiomized?
7. Is transcendental if 0, 1 is Algebraic and is irrational?
8. Prove the Riemann Hypothesis.
9. Construct generalizations of the Reciprocity Theorem of Number Theory.
10. Is there a universal algorithm for solving Diophantine Equations?

2007-07-03 07:03:16 · 3 answers · asked by a2z_alterego 4

Anyone good with series?
It's basically finding the first few non-zero terms of an equation with y", y', and y using y = the series (Cn*x^n), etc.

Here's the actual question:
Find the first four non-zero terms of two linearly independent power series solutions for
(x+3)y"+4y'-xy=0
I've worked it out a long ways but I'm getting really funny answers. Just want to see what someone else gets. Use the derivatives of the series below to solve.

Additional Details:
It's a power series...and we're looking for the first four terms of the power series solutions (there will be two solutions). You have to plug in the y" and y', etc. (from the first guy that answered the previous question) into the equation, expand it all out and get it to have the same indexes, etc. Then you have to plug in "n = 0, 1,..." to get the coefficients (C1, C2, etc.) and those will be the answers. I just want to see if someone else gets the same thing I did....Thanks!

2007-07-03 06:57:20 · 3 answers · asked by smb8586 1

2007-07-03 06:49:01 · 8 answers · asked by peaches 1

this is a sats question.

5 to the power of 5 is 3125.
what is 5 to the power of 7 ?

2007-07-03 06:42:05 · 8 answers · asked by Top_Gear_Biggest_Fan 5

Solve & Explain. I have done many others similar to this one but for some reason, this one isn't workin' out for me.

5{[7(a-4)+97]-[97(4a-7)+4]}

2007-07-03 06:33:41 · 5 answers · asked by Anonymous

2007-07-03 06:31:20 · 6 answers · asked by rickmmadera 1

2007-07-03 06:23:07 · 6 answers · asked by Robert C 1

simplify the expression.

-2x^-2y^0


i aslo need help in this problem..

simplify the expression.

2x^2y^7/6xy^-1

2007-07-03 06:21:36 · 8 answers · asked by lost 2

2007-07-03 06:09:13 · 13 answers · asked by nancy z 1

1.
A person leaves home at 7:00am and drives to a destination at a rate of forty mph. After spending one hour at the destination, the person returns at a rate of twenty-five mph and arrives home at 2:30pm. How far is the trip to the destination?

2.
The sum of two numbers is ninety-one. If the larger number is divided by the smaller number, then the quotient is fourteen and the remainder is one. Find the numbers.

2007-07-03 05:50:59 · 7 answers · asked by Anonymous

The cost of a CD player is £84 plus 17
1/2 % tax.
What is the total cost of the CD player?

2007-07-03 05:46:25 · 8 answers · asked by Top_Gear_Biggest_Fan 5

I am having trouble setting up this problem, if you could help me I would really appreciate it!

Thank you in advance.

A lamina occupies the part of the disk x^2 + y^2 ≤ 25 in the first quadrant and the density at each point is given by the function p(x,y) = 3(x^2+y^2).

What is the moment of inertia about the origin, ∫(x^2+y^2) ρ(x,y)dxdy ?

2007-07-03 05:41:20 · 2 answers · asked by merfie 2

simplify the expression

(x^2y^2)^-1

2007-07-03 05:40:31 · 6 answers · asked by lost 2

I have learned to wait until the last min to do my homework and i am totally lost.

Find the equation, in standard form, with all inter coefficients, of the line perpendicular to x+ 3y =6 and passing through (-3, 5). Show all work

2007-07-03 05:21:49 · 11 answers · asked by CollegeYearRound 1

2007-07-03 05:14:39 · 30 answers · asked by wedfg 2

2007-07-03 05:09:21 · 14 answers · asked by colorado43 3

Refer to the list of errors:
-2 -2 0 0 3 2 -10 2 -8 -1 0
1 0 -1 -1 1 0 4 1 1 -1 0
-1 0 4 1 0 2 4 3 6 4 3
2 -2 -2

Assuming that all such errors have a standard deviation of 2.5, construct a 95% confidence interval estimate of the mean of all such errors

i think the mean of the errors= 0.342857143 but i dont know how to do a confidence interval

2007-07-03 04:48:08 · 2 answers · asked by heffie130 1

Here's the question:

The farmer's slurry tank is 50 metres from a stream. The farmer draws the tank on a map to show this distance. The scale of the map is 1:1250.

What is the distance between the tank and the stream on the map?

a) 2.5cm
b) 4cm
c) 25cm
d) 40cm

I need to know how you worked it out. This is the most important bit. Please don't just give me the answer!!!

Thanks alot

2007-07-03 04:41:07 · 11 answers · asked by RED 2

simplify the expressions. state each property of exponents used.

(a^2)^3

thanks!

2007-07-03 04:38:00 · 10 answers · asked by Anonymous

A- shifts the parent graph down one
B- shifts the parent graph up one
C- shifts the parent graph right one
D- shifts the parent graph left one

2007-07-03 04:37:26 · 6 answers · asked by Anonymous

Two motorcycles travel toward each other from Chicago and Indianapolis which are about 350 km apart, at rates of 110 and 90 km/h. They started at the same time. In how many hours will they meet?

2007-07-03 04:28:07 · 7 answers · asked by mandyyy 1

Solve the system of equations using addition elimination method. . If the answer is a unique solution, present it was an ordered pair (x,y)

If not, specify whether the answer is no solution of infinitely many solutions

3x -2y = -7

-9x + 6y =21

Show all work

2007-07-03 03:46:18 · 10 answers · asked by CollegeYearRound 1

2x^2 + 13x + 6 = 0
show detailed wovkings to get the BEST ANSWER.

2007-07-03 03:25:57 · 7 answers · asked by Anonymous

2007-07-03 03:13:20 · 13 answers · asked by Damo 2

sometimes, always, never , cannot be determined

2007-07-03 02:47:46 · 6 answers · asked by Jake 1