2,567 Answered Questions for the topic Maths

03/25/15

Singular points help
For the differential equation:2(1-x)y''-3y'+(y/x)=0What are the singular points and determine whether they are regular or irregular? Then find the roots of the indicial equationThank you to whoever... more
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Maths

03/23/15

Calculate the lineal metres of timber (150mm x 45mm) required to form up the edge of a concrete slab 6.0m x 2.5m x 150mm (no allowance for waste)
I need Help Please 
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Maths

03/19/15

The ratio of a triangle is 1:2:3 what is the size of the largest angle?
United kingdom 
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03/17/15

Complicated integral
The question has to do with the Schrodinger equation in one dimension and using the propagator. I have gotten an integral but it has to be solved to get the final solution which I can't get. The... more
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Maths Math Help

03/13/15

Help in rearranging terms
Given that Q=W/(1-(T0/T)) and Q=a(T-T0)rearrange so that T is the subject. The final answer is: T=T0 + (W/2a) + (1 + sqrt(1+(4aT0/W)) But I just don't know how to get to it...
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03/10/15

Quadratic models: Parabola graph of ax^2+bx+c
A parabola graph has the Vertex and Y-intercept is A(0,8) and x-intercepts of B(3,0) and C(-3,0)....   Question 1) The parabola has the equation ax^2+bx+c , Use "A(0.8)" to find the value of "b"... more
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Maths Roots

03/08/15

Could anyone help me with a maths problem?
If f(x) = (3x + a), determine the values of a fro which, f(x2 + x + 2) - f(3x - a) = 0 will have really roots.
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03/08/15

Green's function and differential equation
By using the Green's function, solve: y''-αy =e^(-αx) with initial conditions y(0)=y'(0) = 0thank you to whoever can do this in detail for me :)
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03/05/15

need help on this question, dont understand it.
A 15 litre cylinder contains 0.35kg of butane gas (C4 H10). Assuming ideal gas behaviour, calculate the pressure of the gas if the cylinder is stored at 50 Fahrenheit.
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Maths

02/28/15

Sorry. Maths question.
I have fifteen books in total. If five of them are written by me, and I pick four random books to take on holiday, what is the probability that exactly 2 of my books are written by me?
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02/26/15

Harmonic oscillation x=sin?nt?
Hey guys,Hope someone can give me a hand on this one?A particle is subjected to undamped harmonic oscillation described by the equation:x=sinωntProve that the linear acceleration of the particle is... more
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02/24/15

what is the formula for finding n in compound interest
A=P(1+(r/100))^n
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Maths

02/18/15

Which vinegar listed containing a certain percentage of acetic acid is the best value for money?
4.73% of acetic acid in the vinegar for £0.83 6.19% £1.15 5.04% £1.15 5.21% £3.00 5.13% £0.50 6.1% £1.50
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Maths

02/18/15

If 1140ml of vinegar contains 4.75% of acetic acid how do I work out the percent of acetic acid in 1ml?
If 1140ml of vinegar contains 4.75% of acetic acid how do I work out the percent of acetic acid in 1ml?
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02/15/15

Limits of sequences, please help!
limn->infinite[ (-1)n/(n3-12)}  I dont know what to do with (-1)n, if it's equal to infinite then if I divide by n3, it's infinite over infinite. I dont understand :S. And the question is if... more
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02/10/15

prove that: 1-cos2?/sin2?=tan?
Prove that:   1-cos2θ/sin2θ=tanθ   Please show workings.   Thank you.
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02/10/15

show that: [tan(x+p/4).tan(x-p/4)]=1
Show that:[tan(x+π/4).tan(x-π/4)]=1   please show workings.   I ended up at. 1.tan(x)+1/1+tan(x)=1not sure i'm right though.
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Maths Math Math Help

02/03/15

Prove that.....
Anyone help me solve this?Prove that: cos(y-Π)+sin(y+Π/2)=0    
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Maths

02/02/15

maths problem
Rearrange this formula to make b the subject. b) Factorise x2+ x — 2 hence simplify x^2+x-2 over x^2-4
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Maths

02/02/15

simultaneous equation
2x+3y=15.5   x+y=6
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Maths

02/02/15

maths problem
12 ) y is directly proportional to x3 When x = 2, y = 20. (a) Find y when x = 8. ¦ (b) Find x when y = 1000.
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Maths

02/02/15

maths problem
 On another special offer day, all prices are reduced by 40%. At the end of the day. special offer prices go back to normal. By what percentage do special offer prices increase at the end of the day?
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02/02/15

maths problem
A basket ball team has 5 players and one reserve. the mean weight of the 5 players is 58kg the reserve weighs 64 kg whats the mean weight of all 6 players
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01/30/15

Find the partial fraction of the following:
I have worked this out myself but it's not the same as my friend is getting so we need someone else to give it ago please, again please show your steps:   Find the partial fraction of the... more
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Maths Terms

01/30/15

Rewrite the following in terms of “a”: y=xe^((a/vw) )
Can someone help me with this one please.   Rewrite the following in terms of “a”: y=xe(a/vw)   I'm not sure of the steps on how to achieve the correct answer.
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