Determine the specific solution of the following initial-value problems. y''+ 4y' + 20y = 0, y(pi/2)=0 and y'(pi/2)=2

Determine the specific solution of the following initial-value problems. y''+ 4y' + 20y = 0, y(pi/2)=0 and y'(pi/2)=2

1/4 of year = . Something

1. Solve the equation 1/3 (-6x+12)-4x=32-1/2 (8x-16). Check your answer Show all of your work. I recently caught some kind of flu and was told to stay off of my feet for a while...

The height of a building is proportional to the square of the time it takes to demolish that building plus a construction set up time of 1 day which doesn't depend on the building. It would take 2...

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Suppose h(x)=f(g(x)), h(x)=(2x+1)^3, and f(x)=x^3. What is g(x)?

Suppose you invest 5000 dollars in a bank account earning 3 percent yearly interest. a) Write a function for the amount of money in the account t years after you invest, if the interest...

Write a complete two-column proof for following information: Given: Segment AB = x + 16, Segment BC = 4x + 11 Segment AC = 77 Prove: AB = 26

If a bacterial culture starts with 9000 bacteria and doubles every 15 minutes, how many minutes will it take the population to reach 26000?

Find a number a such that f∘g=g∘f, where f(x)=6x+5 and g(x)=ax+4. a=?

A circular oil slick is expanding with radius, r in yards, at time t in hours given by r=2t−0.3t^2, for 0≤t≤10. Find a formula for the area in square yards, A=f(t), as a function of time. f(t)=...

Consider the function f(x)=2-2 sqrt(x+3) and g(x)=2^x. a) What is (f o g)(x)? b)Do you have to restrict the domain of g(x) for part (a) to make sense? If so, what...

''the figure below shows cuboidal cells making up the lining of a kidney tuble'' ''the cuboidal cell is a perfect cube and the height of one side is 0.001mm,calcualte the surface...

Im not sure how to answer this problem and also can you answer quick because it is for homework. Also I need a tutor so this is a great website!

Im not sure how to answer this problem and also can you answer quick because it is for homework. Also I need a tutor so this is a great website!

If 270º <x< 360º , show that √(2+√(2+2cosx)) = 2 sin x/4. Thank You! :)

Omg pls I'm so stressed right now and I'm hoping this site will help with my math about permutations and combinations, so basically for my assignment I was given a story about Tom and jerry and there...

Im not sure how to answer this problem and also can you answer quick because it is for homework. Also I need a tutor so this is a great website!

triangle DEF and triangle QRS are right triangles. If Δ DEF is simular to Δ QRS, and m<EFD= 65°, which of the following angles also has a mesure of 65°?