Lachlan1996
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 29
 Questions Answered
 8
 Medals Received
 6

 Questions Asked
 4
 Questions Answered
 1
 Medals Received
 0

 Questions Asked
 29
 Questions Answered
 8
 Medals Received
 6
Questions Asked

Lachlan1996:
Linear Programming help: y>= x+500 , x+y>= 4000 , x>=1000
If x = 1750, and y = 2250, then for each of x gives a profit a, and y gives a prof…
 updated 8 months ago
 14 replies
 1 Medal
Mathematics

Lachlan1996:
Solve x/(x3) > 0 Please explain
 updated 9 months ago
 4 replies
 1 Medal
Mathematics

Lachlan1996:
How do you know which term goes first when solving for partial fractions, so you dont solve the a and b wrong? So if you have (x3)(x+4) as …
 updated 9 months ago
 16 replies
 1 Medal
Mathematics

Lachlan1996:
Express 2x^2 +9x 6/(x^2 + x 6) as a partial fraction
 updated 9 months ago
 43 replies
 1 Medal
Mathematics

Lachlan1996:
Normal distribution. mean 20, standard deviation 5
P(20k < X < 20+k)=0.8684 Find k
 updated 10 months ago
 1 reply
 1 Medal
Mathematics

Lachlan1996:
Probability: Let us suppose that each time a particular basketball player shoots a three point attempt the probability of scoring is 0.4. Ho…
 updated 11 months ago
 3 replies
 2 Medals
Mathematics

Lachlan1996:
Two normal dice, one blue and one red rolled. the two results added together. What is the probability of getting a sum of 6, given that the …
 updated one year ago
 9 replies
 1 Medal
Mathematics

Lachlan1996:
Why does a sprinter running in a 200m event lean towards the centre of the curve he is rounding?
 updated one year ago
 2 replies
 1 Medal
Mathematics

Lachlan1996:
Solve y=x^39x given that x = sqrt(3)
 updated one year ago
 3 replies
 1 Medal
Mathematics

Lachlan1996:
Use calculus to locate the stationary points on the graph y=x+2/x
 updated one year ago
 20 replies
 1 Medal
Mathematics

Lachlan1996:
Solve, using the product rule, y = (4x1)(x^2 5x +1)
 updated one year ago
 10 replies
 1 Medal
Mathematics

Lachlan1996:
Help with mathematical combinations please.
Points A, B, C, D, E, F, G, H, and I are arranged in two rows such that we have A  B  C  D …
 updated one year ago
 17 replies
 2 Medals
Mathematics

Lachlan1996:
How to differentiate 12x^1/2
 updated one year ago
 6 replies
 2 Medals
Mathematics

Lachlan1996:
consider quadratic functions in the form f(x)=ax^2 + bx + c . Express the equation of the tangent line to the function f at the point (p,q) …
 updated one year ago
 12 replies
 2 Medals
Mathematics

Lachlan1996:
Need help, can someone verify my calculations for nuclear fusion equation? question inside
 updated one year ago
 3 replies
 1 Medal
Mathematics

Lachlan1996:
given that f(x) = ax^3 + bx^2, f(2)=4 and f'(3)=99 find f(x), f(3) and f'(2)
 updated one year ago
 47 replies
 3 Medals
Mathematics

Lachlan1996:
The curve y=ax^2 + b passes A (3,39) and B (2,c). The tangent to the curve at A is parallel to the line y=30x7. find a,b and c and the tan…
 updated one year ago
 30 replies
 2 Medals
Mathematics

Lachlan1996:
One small part of a construction project involves a metal rod spanning 20 metre gap with the rod resting on supports at each end. the rod wh…
 updated one year ago
 1 reply
 No Medals Yet
Mathematics

Lachlan1996:
I need help with my physics lab. What is the optimal distance between two electrodes in water using a 12v dc powerpack that can handle 5 amp…
 updated one year ago
 No Medals Yet
Mathematics

Lachlan1996:
find the indefinite integral x(2x+1) dx
 updated one year ago
 13 replies
 1 Medal
Mathematics

Lachlan1996:
derive v=4x^3 200x^2 +2400x
I have derived it to v'=12x^2 400x +2400
But now i need to solve for the value of x
 updated one year ago
 7 replies
 No Medals Yet
Mathematics

Lachlan1996:
Differentiate (sqrt(x^9)/sqrt(0.01x)
 updated one year ago
 14 replies
 3 Medals
Mathematics

Lachlan1996:
Practice test question (calculus/optimisation): A childs cubby house is to be built with no floor and a flat roof. The volume of the cubby h…
 updated one year ago
 3 replies
 1 Medal
Mathematics

Lachlan1996:
Practice test question (calculus/optimisation): A childs cubby house is to be built with no floor and a flat roof. The volume of the cubby h…
 updated one year ago
 No Medals Yet
Mathematics

Lachlan1996:
Julie claims that:
"The sum of any five consecutive positive integers is always divisible by five." Peter claims that: "the sum of any six …
 updated one year ago
 25 replies
 1 Medal
Mathematics

Lachlan1996:
8. One of the Roman dice in the British Museum has 6 square faces and 8 triangular faces. It is twice as likely to land on any given square …
 updated one year ago
 24 replies
 3 Medals
Mathematics

Lachlan1996:
What do you do when asked to prove something mathematically?
 updated one year ago
 92 replies
 3 Medals
Mathematics

Lachlan1996:
Calculus. s=(t^3)/3 6t^2 +50t
with what value of t does the object have a minimum velocity.
 updated one year ago
 25 replies
 2 Medals
Mathematics

Lachlan1996:
factorise 3x^2 18x +15
 updated one year ago
 No Medals Yet
Mathematics

Lachlan1996:
How to factorise x^3  9x^2 +15x + 30
 updated one year ago
 4 replies
 1 Medal
Mathematics
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