1,287 Answered Questions for the topic differential equations

Differential Equations

04/23/19

ODE 2y''-y'=1, y(0)=0, y'(0)=0
Hello dearsIt's such a crazy question, but I just confused that how can I find general solution!!?2y''-y'=1, y(0)=0, y'(0)=0I tried with these forms but couldn't find!1) y=c1*c^x +... more
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Differential Equations

04/23/19

Writing an equation
the width of the rectangle shown is x inches, and the length is (3x+2) inches. write an expression representing the perimeter of the rectangle?
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Differential Equations

04/21/19

Volume question
An open box is to be made out of a 6-inch by 18-inch piece of cardboard by cutting out squares of equal size from the four corners and bending up the sides. Find the dimensions of the resulting box... more
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Differential Equations Calculus Differential Calculus

04/18/19

How many sets should be made and sold to maximize the weekly profit?
A manufacturer sells each of his TV sets for 85 dollars. The cost C (in dollars) of manufacturing and selling x TV sets per week is C=1500+10x+0.005x^2. If at most 10,000 sets can be produced per... more
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Differential Equations Calculus Differential Calculus

04/18/19

Find the number of trees per acre that will give the greatest yield per acre.
An orchard has an average yield of 25 bushels per tree when there are at most 40 trees per acre. When there are more than 40 trees per acre, the average yield decreases by ½ bushel per tree for... more
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Differential Equations Calculus

04/15/19

What was the mass of the isotope after 20 days?

The mass of an isotope decreases at a rate that is proportional to the mass at that time. The mass of the isotope was 40 grams initially and it was 10 grams after 16 days.
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Differential Equations Calculus

04/13/19

What is n in this case?
If f'(x)= [f(x)]2 and f(0)=1 then f(6)= 1/n for some integer n
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Differential Equations Calculus Precalculus Functions

04/13/19

calculus help me
Find the range of the function f(x)=x2-2x+1 if x∈[-2:3)
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Differential Equations

04/13/19

How many million barrels of oil did the company export annually after 10 years?
The number of barrels of oil a certain company exports annually increases at a rate that is proportional at any time to the number of barrels they export at that time. The company exported 5.4... more
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Differential Equations Calculus Gmat

04/12/19

calculus, differentiable function
Find b , if it is known that the function f(x)={x+3 if x<3 ; ax2+bx if x>=3 is differentiable, where a and b are parameters.
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Differential Equations

04/08/19

Translate the given phrase into an algebraic expression and simplify if possible: the quotient of 12 and the product of 3 and 4.
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Differential Equations

04/02/19

Help please with equations
given the equation y=-x+20 and y=x-8 which values of x and y satisfy both equations
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Differential Equations Math Algebra

03/22/19

Two numbers have a sum of 17. Four times the smaller number is 8 more than double the larger. Find the numbers.

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Differential Equations

03/19/19

What is a homogeneous differential equation
I have learnt that in first order differential eqn that the eqn is homogeneous if the degrees through out the functions is the same. But in second ODE, one side of the equation has to be zero for... more
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Differential Equations Calculus

03/19/19

Solve the differential equation. (Use C for any needed constant. Your response should be in the form 'g(y)=f(θ)'.)
Solve the differential equation. (Use C for any needed constant. Your response should be in the form 'g(y)=f(θ)'.)7(dy/d(theta))= ((e^ysin^2(theta))/(ysec(theta)))
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Differential Equations Calculus

03/19/19

Solve the differential equation. (Use C for any needed constant. Your response should be in the form 'y=f(x)'.)
Solve the differential equation. (Use C for any needed constant. Your response should be in the form 'y=f(x)'.)xy^2y' = x+3
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Differential Equations

03/19/19

Find y as a function of x if y'''+64y'=0, y(0)=1 y'(0)=24 y''(0)=64 y(x)= ?
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Differential Equations Calculus

03/18/19

What’s the solution of the given differential equation by method of variation of a parameter d2ydx2+3dydx+2y=e−xx?
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Differential Equations Calculus Maths Mathematics

03/18/19

Mathematics - Differentiation 'product rule' Problem
hi, I am struggling with a maths question, it is differentiation using the product rule however I cannot solve this. Please complete this problem for me with step by step in the answer and I will... more
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Differential Equations Algebra

03/15/19

2p+p(sqaure)=16800 find p
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Differential Equations Calculus

03/13/19

How do you graph f(x) = ||x|-3|+4?
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03/13/19

Differential Equations Text (Math GRE)?
I am currently looking for a Differential Equations text from which to study for the Math GRE Subject Test. (As a side note, I currently own a copy of Stewart's Calculus.) Any suggestions of... more
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Differential Equations Calculus

03/13/19

How do you solve the differential equation: dy/dx= (2x^4+4x^2+8) / (x^3+4x)?
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Differential Equations

03/12/19

equations of parallel and perpendicular lines
write the equation of a line that is perpendicular to y=7/5x +6 and that passes through the point (2,-6)
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Differential Equations

03/10/19

How can i simplify this equation? Answer in steps, please.
(r+q)(r-q)-r2_____________3q2
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