1,272 Answered Questions for the topic differential equations

Differential Equations

03/04/21

What is the general solution of the differential equation (1 +x) y' = 7x

Differential Equations Math Algebra

02/26/21

My question is what is the difference between 12a and a12

I need this soon, we are learning about it and it has always stumped me.
Differential Equations Math Calculus Maths

02/22/21

Solving Ordinary Differential Equations Using Picard's Method

Given that f'(t) =dy/dt = t*ey ; y(0) = 0.Determine the value of y using Picard's method when t = 0:3. (Use 2 iterations)
Differential Equations

02/18/21

need to find the total of stamps

Joanna enjoys collecting stamps and wants to help her two little sisters get involved in the hobby. She gives 1 8 of her stamps to her sister Kim, and gives 3 7 of the remaining stamps to her other... more
Differential Equations

02/18/21

Give an adequate mathematical model for this scenario. Explain what each of your variables means. (ii) What is the concentration of the incoming salt solution?

A tank contains 10 liters of pure water. A solution of an unknown, but constant concentration of salt is flowing in at 0.5 liters per minute. The water is mixed well and drained at 1 liter per... more
Differential Equations

02/17/21

Newton's law of cooling

Newton's law of cooling states that the temperature of an object changes at a rate proportional to the difference between its temperature and that of its surroundings. Suppose that the temperature... more
Differential Equations Math Algebra Equation

02/17/21

Please help me make these two equations (I NEED IT IN 30 MIN)

They sold a total of 20 pairs. Plastic gloves cost $7.95. Cloth gloves cost $11.50. In total they store received $176.75. I need the two equations that make up this problem to solve the amount of... more
Differential Equations Calculus

02/16/21

Equation (3y^2 - x)dx + (2y^3 - 6xy)dy = 0 has an integrating factor in the form M(x,y) = (x + y). (a) Show that this equation is not exact(complete). (b) Solve the equation by using M.

Equation (3y^2 - x)dx + (2y^3 - 6xy)dy = 0 has an integrating factor in the form M(x,y) = (x + y). (a) Show that this equation is not exact(complete). (b) Solve the equation by using M.
Differential Equations Algebra 2 Mathematics

02/12/21

coffee blend word problem

A coffee distributor needs to mix a(n) Terraza coffee blend that normally sells for $8.40 per pound with a Kona coffee blend that normally sells for $13.60 per pound to create 20 pounds of a coffee... more
Differential Equations Math

02/05/21

Urgent help math

Consider the IVPdy/dx = y/x -αsqrt1-y/x y(a)=0. (a) Show that this equation is homogeneous. (b) Find the explicit solution to this IVP.(c) Forα<1,α=1andα>1,findlimy(x). x→0(d) For a = 200,... more
Differential Equations Fractions

02/05/21

My car gets 28miles to the gallon. After filling up the tank I drove 224miles. What fraction of the tank is remaining at that point?

Part A. My gas tank holds 18 gallons of gas, it is 2/5 full. Gas per gallon costs $2.80. How much money will it take to fill my gas tank?(answered)
Differential Equations

02/04/21

A number added to 5 is the same as the sum of twice the number and 3.

write this as a equation
Differential Equations Math Algebra 1 Algebra 2

02/03/21

Determine the equation for the parabola that satisfies the following conditions:

Graph of y=x^2 is: (i) stretched vertically by a factor of 2, (ii) reflected about the x-axis, (iii) Translated left 4 units, (iv) Translated up 3 units.What is the new equation?
Differential Equations Prealgebra Algebra

02/01/21

Equation Application

 one hot air balloon is 15 meters above the ground, and is rising at a rate of 20 meters per minute. a second balloon is 195 meters above above the ground, and is descending at a rate of 16 meters... more
Differential Equations Calculus Chemical Engineering

01/29/21

How do I find the analytical solution to this differential equation and then plot H vs t?

(v12)/2g * (1 - 1/B4) = - (H + L)wherev1 = - dH/dt and H(to) = Ho
Differential Equations

01/28/21

translate the description into an equation.

five times the subtraction of 3 multiplied by a number and 12 is equal to 60 more than 15 multiplied by the number.
Differential Equations

01/27/21

What is Kim and Amy age

Kim is two years older than three times Amy’s age. Their ages add up to 98.
Differential Equations Algebra 1 Algebra 2 Mathematics

01/27/21

The pig pen: Suppose that a rectangle pig pen is 4 feet longer than it is wide and its area is more than 32 square feet. The question is the dimension of the pen.

3. Sketch the graph of the function 𝑦 = 𝑥 2 + 4𝑥 − 32 and shade the 𝑥 −values that satisfy the inequality: 𝑥 2 + 4𝑥 − 32 > 0.
Differential Equations

01/23/21

Find the roots of the indicial equation

Find the roots of the indicial equation of the differential equation(x2-1)2y"+(x+1)y'-y=0At x=-1
Differential Equations

01/22/21

what is 4 1/2-3/4

Differential Equations

01/18/21

Write a equation for a parabola with a focus at (-2,5) and a directrix at x=3

Differential Equations

01/18/21

Find the general solution (x+2y-1)dx-(2x+y-5)dy=0

Differential Equations

01/18/21

Find the general solution of (3x-y+1)dx-(9x-3y-3)dy=0

Differential Equations Calculus

01/17/21

Applying two different methods, solve this DE: y' + (a + bx)y = f(x)

Differential Equations

01/14/21

Differential equations

Use power series method to solve;y"+9y= 0

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