Hey! Im stuck on my uni calculus assignment... couple of questions i just cant get my head round! if anyone can help id be forever grateful :-)
11. A shop owner needs to calculate the cost of...
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A black triangle has a base length of x. It is known that when the lenth of the base has 1 added and is then doubled this is the same as the height of the triangle.
A small white triangle has ...
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It's late and I'm tired, so this may prove to be a D'OH kind of a question, but here it is (and yes, it's related to something I started on a couple months back):
If I have an object at the or...
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"Water is being poured into a conical vessel of semi vertical angle of 30 degrees at the rate of 100Pi cm cubed per minute. find the rate at which the depth pf water is increasing when the wa...
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solve 1/(5-4x) + 1/(x-7) <= 0
...
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A sculptor works with large wooden cubiods, cuts them into three smaller cuboids and then paints them black, white and grey. The volume of the black cuboid is always twice the volume of the white ...
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Hi, I'm an engineering student in my 2nd year, not that that's relevant but nevertheless, I stumbled across some interesting problems today that may be a little thought provoking.
The first i...
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1)Show for all real numbers a, b > 0, that
(a + b) > or equal to (2)( the square root of ab)
2) show that (a + b)(1/a + 1/b) = [(a + b)^2] / ab
3) Deduce that (a + b) (1/a + 1/...
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Let a, b, c be positive real unequal numbers.
Using the results 1) a^2 + b^2 > 2ab
2) b^2 + c^2 > 2bc
3) c^2 + a^2 > 2ac
...
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a and b are real numbers
a + b = -7
(a)(b) = 11
a^2 + b^2 = 27
find a quadratic equation with roots a/b and b/a and write the answer in the form p(x^2) + q(x) + r = 0
p,q,r a...
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hi first time here, i am making a program to calculate postage costs. and on a loop that is in the program when it does the sum of 3.45 + 0.86 it comes up with 4.30 when it should be 4.31
...
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The underground temple of the lost civilization of the Ancient Primes qwas recently discovered deep in a South American jungle. The keys to the temple were discovered long ago. There are 25 of the...
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Hi for school we recieved a question in which we needed to show that the x-coordinate of the vertex of the graph of y=ax^2 + bx + c is x=-b/2a
Any help would be appreciated.
Thanks
...
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I have a equation:
N(n,k)=N(n-1,k-1)+N(n-2,k)
how do I use mathematical induction to get:
N(n,k) = C( n+k/2, k)
where C(a,b) is the binomial coefficient (combination) function.
...
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Isabel was making a rectangular strips 2 units wide using 2 x1 tiles. She was interested in the number of different strips of each length she could make. Here are some of her examples arranged acc...
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Is there a mathematical proof to show that:
if two sets of 7 prime numbers sum to 100 then, then the set that has the largest product of all prime numbers will be the one with the smallest ra...
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Does anyone have any idea what a micro radian is or what it is equivalent to in degrees?
Is this metric or something
Thanks
Reston
...
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Hi,
I'm after integrating the function 1 / (e^x + e^-x); how exactly would I go about this? Some kind of substitution seems like the best route, but I'm not entirely sure what.
Thanks,
S...
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Hi can anyone out there give me some reallife every day examples where the following topics are used!
I am experiencing the "why" and "whats the point in learning this miss" ...
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Hi all,
I have 2 questions that are roughly the same thing
1) if i take a number lets say 44. is there an easy way to pick two random points along a random line ( i guess random slope of...
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Hello,
I will be glad of every clue to solve this equation.
a/(12*d*x)+(b*c)/(1+exp(c*x))=(b/d)*ln(1+exp(-c*x)
a, b, c, d are constants and I'm looking for x.
It is really complex...
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A sculptor works with large wooden cuboids (rectangular prisms), cuts them into three smaller cuboids and then paints them black, white and grey. The volume of the black cuboid is always twice the...
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hi guys,im trying to find a software which will create combinations for me (1-10 characters)and with the ability to decide what will be the last letter ex':
aaaab@ (@ is the last letter)and i ne...
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HI
I have some kind of error in my Lingo-code and I just can't find it.
Please help
I'm using LINGO7.
The error code is as follows:
Error code 21:
Error in line 22: krp=500,500...
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Hello,can somebody melp me with this project please.
Is circle and his radius = s.From circular sector obout central angle alpha is wind cone.
How choose alpha to he should have(this cone) m...
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