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Questions Asked

S:
Group Title
Can somebody show me the steps how to find the minimum or maximum point of f(x)= (4x1)/e^(x/2) ?
 updated 2 years ago
 2 replies
 No Medals Yet
Mathematics

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Group Title
find the maximum or minimum relative point of the function : f(x)=(1x)e^(2x) ?
 updated 2 years ago
 4 replies
 1 Medal
Mathematics

S:
Group Title
Square root of (2/3)^2( square root(2/3)^24)= ?
 updated 2 years ago
 3 replies
 No Medals Yet
Mathematics

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Group Title
How to sketch the graph of f(x)=x^2(x^24) including the inflection point?
 updated 2 years ago
 17 replies
 2 Medals
Mathematics

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Group Title
What is the inflection point of f(x)=x^2(x^24) ?
…
 updated 2 years ago
 2 replies
 1 Medal
Mathematics

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Group Title
Sketch the following curve , including all intercepts, maximum and minimum points and inflection point f(x)=2x/x2 ?
 updated 2 years ago
 1 reply
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Mathematics

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Group Title
Let X1, X2, X3 denote a random sample of size 3 from a gamma distribution with alpha=7 and theta=5.
a) Find the moment generating functi…
 updated 2 years ago
 1 reply
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Mathematics

S:
Group Title
Let X1, X2, and X3 be mutually independent random variables with Poisson distributions having means 2, 1, 4, respectively. Find the moment g…
 updated 2 years ago
 18 replies
 1 Medal
Mathematics

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Group Title
If 100/x > 0 , what is x ?
 updated 2 years ago
 1 reply
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Mathematics

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Group Title
Find the derivative and simplify : y=(3x^2+5x+1)/(3x^2) ?
…
 updated 2 years ago
 13 replies
 1 Medal
Mathematics

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Group Title
How to find the critical number of f(x)=(x^23x+2)^1/2
 updated 2 years ago
 5 replies
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Mathematics

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Group Title
Using the Chain Rule , find dy/dx if y=u^43u^2+7 and u=x^2+3
 updated 2 years ago
 2 replies
 1 Medal
Mathematics

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Group Title
How to find two positive x and y that minimize Q=x^2y if x+y+2 ?
 updated 2 years ago
 11 replies
 3 Medals
Mathematics

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Group Title
Find all xcoordinates of points on the curve y=(x2)^5/ (x4)^3 where tangent line is horizontal
…
 updated 2 years ago
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Mathematics

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Group Title
Find the equation of the tangent line to the curve y=((x2)^3) * ((x5)^2) at the point (3,4). Show work.
 updated 2 years ago
 21 replies
 1 Medal
Mathematics

S:
Group Title
c(x) = 6x^2 + 14x + 18
a) find marginal cost function
…
 updated 2 years ago
 10 replies
 1 Medal
Mathematics

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Group Title
When methanol is used to generate hydrogen, it reacts with the following reaction: 2CH2OH > 2CO + 3H2. The reaction is a second order in m…
 updated 2 years ago
 2 replies
 3 Medals
Mathematics

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Group Title
If we approximate the atmosphere to be 84% Nitrogen and 16% Oxygen estimate the density of air (kg/m^3) at STP conditions (0c, 1atm).
 updated 2 years ago
 6 replies
 1 Medal
Mathematics

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Group Title
Differential Equations:
A disease is introduced into a community of 5000 individuals. If the rate at which the disease spreads through the …
 updated 2 years ago
 3 replies
 1 Medal
Mathematics

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Group Title
y'' + 2 sin y' + 3e^x y = 0
Linear or nonlinear? If linear, is it homogeneous?
 updated 2 years ago
 3 replies
 1 Medal
Mathematics

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Group Title
[(x^3)  (y^3)]dx + [(y^3)  3x(y^2)]dy = 0
I. M = x^3  y^3 ; N = y^3  3x(y^2)…
 updated 2 years ago
 2 replies
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Mathematics

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Group Title
y' = x + y
 updated 2 years ago
 4 replies
 5 Medals
Mathematics

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Group Title
By inspection, find a one parameter family of solutions of the differential equation xy' = 4y. Verify that each member of its family also sa…
 updated 2 years ago
 8 replies
 2 Medals
Mathematics

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Group Title
(x^2)*y'' + 5*x*y'  5y = 0
 updated 2 years ago
 3 replies
 1 Medal
Mathematics

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Group Title
Consider the following second order differential equation:
y''  2y' + y = (e^x) / 1+ (x^2)…
 updated 2 years ago
 1 reply
 1 Medal
Mathematics

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Group Title
Find the general solution of the differential equation if x is restricted to the interval (0, infinity). (x^2)y''2xy'4y=0…
 updated 2 years ago
 9 replies
 2 Medals
Mathematics

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Group Title
Consider the differential equation y''y'12y=0
a) Solve the linear second order homogeneous differential equation with constant coefficien…
 updated 2 years ago
 3 replies
 1 Medal
Mathematics

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Group Title
Find the matrix A and vector b if the given system is written as x' = Ax + b
x'1 = (e^t)*x1  (e^t)*x2 + cos(5t)…
 updated 2 years ago
 1 reply
 1 Medal
Mathematics

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Group Title
Rewrite the differential equation as a first order system.
x'' + 4tx' + (x^2) =(t^2)*tan(t)
 updated 2 years ago
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Mathematics
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