Mathematics - 26 August 2006

WHAT IS THE DEFINITION?

2006-08-26 23:22:49 · 17 answers · asked by viraj l 1

xshould have smallest positive value

2006-08-26 23:11:35 · 5 answers · asked by Anonymous

my teacher's answers say that y=0 is an assymptote, but when i sub y=0 in to the equation, i get x=1. is this possible? and why?

2006-08-26 22:50:07 · 8 answers · asked by pensive 1

problems on linear inequalities

2006-08-26 22:08:31 · 14 answers · asked by Anonymous

There is a pizza that has to be cut into 3 equal portions and has to be cut paraell to each other. It has a diameter of 36cm. What formula would suit this problem

2006-08-26 22:06:45 · 9 answers · asked by michael 1

2006-08-26 22:02:10 · 10 answers · asked by Anonymous

2006-08-26 21:44:17 · 10 answers · asked by Anonymous

it is given..
when y=x/x-2 , x cannot equals 2

i found dy/dx to be -2/(x-2)square
to ans the above question, what working should i show?
is saying..
"when x>2, dy/dx will always be negative so this proves that y is a decreasing function"
enough?

2006-08-26 21:23:57 · 6 answers · asked by pensive 1

I really have no idea about the sig figs. Can you explain me about the calculations- addition, subtraction, multiplication and division of the sig-figs.

2006-08-26 21:21:53 · 4 answers · asked by Anonymous

2006-08-26 21:09:24 · 7 answers · asked by the Benny Bossy Klan 3

1) Find all integers n>1 for which n^4+4^n is a prime.

2) Are there any integers x and y such that x^2-5y^2=2. Show it

3) How many integers are there such that n such that 2^n+27 is divisible by 7?

4) Find the least postive integer that leaves remainder of 1, 1, 4, 3 when divided by 2, 3, 5, and 4 respectively.

5) Solve the folowing congruences: x=5(mod 7), x=7(mod12) , x=3(mod 25).

6) Last one now. Solve x=5(mod6), x=4(mod 11), x=3(mod 17)

2006-08-26 19:38:03 · 8 answers · asked by edwinvandesar 1

2006-08-26 19:22:13 · 20 answers · asked by Anonymous

then load the truck with heavy stuff, so much that the tire is bulging with the load, why is there still only 80 pounds of air in the tire?

2006-08-26 19:00:19 · 10 answers · asked by rera1397 3

i am totaly ignorant of all mathematical concepts and terms.

2006-08-26 18:56:43 · 5 answers · asked by Piffle 4

I have been working on this problem forever, and it's being such a pain! I have no idea why a problem this simple has become so mind-numbing. I am use to using the Property of 0 (Let F(x) become 0). I know that when using 0=1/2X, Anything I do with the 1/2 on the other side becomes a 0. Any explaination I would appreciate so I can put this problem to rest once and for all!

2006-08-26 18:41:01 · 15 answers · asked by Anonymous

a^(n)-b^(n)
=(a-b)^(n)+nk(a-b)
here when "a" is an odd natural number , "b" is any natural number other then "a" and "n" is any prime number or its factors are the same prime (the numbers whose multiples are 5 like 25 ,125 etc are excluded but the case of 5 is included.) then "k"will always be a natural number.
give an example to prove it wrong.

2006-08-26 18:33:11 · 3 answers · asked by rajesh bhowmick 2

I am thinking of buying a heater that looks like a wood stove, but it is electric. My other alternative to supplement heat in my house is a pellet stove. I can't read darn conversion tables on watts to kilowatt hours to save my life. If I run this 1300 watt heater 24 hours per day for 30 days a month, I need to know how many kilowatt hours KWH it will use to figure out how much it will cost me...please, help me you math wizards! Anne in Canada

2006-08-26 18:28:43 · 13 answers · asked by kaapride bulldogs poms exotics 2

two cars traveled in the same direction along a straight highway, one at a constant speed of 55mi/h and the other at 70mi/h. how far must the faster car travel before it has a 15-min lead on the slower car?

2006-08-26 18:23:21 · 10 answers · asked by Anonymous

A- zero
B- positive
C- one
D- negative

2006-08-26 18:06:17 · 22 answers · asked by Anonymous

2006-08-26 18:04:20 · 11 answers · asked by Scott R 6

2006-08-26 18:01:36 · 20 answers · asked by allemergencyacheat@verizon.net 1

A circle C1 with centre O1 exists. Inside it exists another circle C2 with centre O2 just touching C1 at A.Another circle C3 ,passing through O2 also touches C1 at B meeting C2 at P and Q a line through PQ touches C1 at X and Y.X and Y are joined to B meeting C3 at F and G respectively.Prove that FG is tangent to C2
Please no co ordinates or trignometry

2006-08-26 17:23:20 · 6 answers · asked by Anonymous

a^(n)-b^(n)
=(a-b)^(n)+nk(a-b)
here when "a" is an odd natural number,"b" is any natural number other then "a" and "n" is any prime or its factors are the same prime then "k" will always be a natural number.

2006-08-26 17:20:56 · 7 answers · asked by rajesh bhowmick 2

2006-08-26 17:05:05 · 7 answers · asked by Anonymous

I know how to do it with caluculus. I just want to know how to do it with algebra as in no derivativation, integration, or limits...

2006-08-26 16:56:00 · 5 answers · asked by venomfx 4

I calclated: 69,720,375,229,712,477,164,533,808,935,312,303,556,800
I want to see if I am right (and share the answer with everybody).

2006-08-26 16:28:02 · 5 answers · asked by Quantum Eagle 1

This is th mixed up lines of a times table. What times table is it???
Each Letter represents a number, single digit or multiple digit.
F x E = HJ
F x C = F
F x F = IH
F x B = GD
F x D = CI
F x H = AD
F x I = HF
F x G = EI
F x A = DH

Hard, isn't it...

2006-08-26 16:10:25 · 5 answers · asked by Marzbar 2

If there is a circle of radius x (for this question say x=5) drawn on a table of radius y (for this question say y=10), and you randomly drop a square of side length of length z (say z=4) onto the table with no possiblility of any part of the square overhanging the table's edge, what is the probability that the square is entirely contained by the drawn circle? (i.e: No part of the square has crossed the edge of the drawn circle. The square can TOUCH the edge of the drawn circle though.)
I've been thinking about this problem for a long time and can't come up with an answer. An answer to the problem and explanation of how you solved it using the numbers above mentioned would be greatly appreciated.
Also, if someone could perhaps come up with a formula using the above x, y and z?
Thanks.
Note: Nobody has to answer all of the above mentioned. Any partial answers would also be appreciated.

2006-08-26 16:09:44 · 5 answers · asked by Anonymous

alright so im real stuck on this one. somethings just not clicking with me. any help would be much appreciated. thanks!


Use the position function s(t) = -4.9t^2 + 150
which gives the height (in meters) of an object that has fallen from a height of 150 meters. the velocity at time t = a seconds is given by

lim [s(a) - s(t)] / [a - t]
t->a


Find the velocity of the object when t = 3


thanks again :)

2006-08-26 16:02:11 · 3 answers · asked by lebeauciel 3

2006-08-26 15:54:01 · 7 answers · asked by Anonymous