Solve the given differential equation by undetermined coefficients. y" + 4y = cos?(x)
x(x) = cos(2x) + Cysin(2x) + sin(2x)
Solve the given initial-value problem.
y" + 3y' - 4y = 17e2x, y(0) = 1, y'(O) = 1
Y(x) =

An air conditioning system can circulate 350 cubic feet of air per minute. how many cubic yards of air can it circulate per minute?

Marla bought a book for $12.95, a binder for $3.49, and a backpack for $44.99. the sales tax rate is 6%. find the amount of tax and the total she paid for these items

The scatter plot shows the number of animal cells clara examined in a laboratory in different months: plot ordered pairs 1, 20 and 2, 60 and 3,100 and 4, 140 and 5, 180 what is the approximate predicted number of animal cells clara examined in the 9th month?