Use a table of Laplace transforms to find the Inverse Laplace transform of F(s)= (3s+9)/(s^(2)+9)

f(t)=

Cynthia takes her dog to the park every 2 days. she bathes her dog every 7 days. if she took her dog to the park and bathed him today, how long will it be until she does both on the same day again?

What is sin 7x/4 ? i need on this urgent trig

If the ratio of sum of the first m and n terms of an ap is m2 : n2 , show that the ratio of its mth and nth terms is (2m − 1) : (2n − 1).