Use the definition of the laplace transform for cos(2t) => where a is ∞ and b is 0

Are triangles the congruent? write the congruency statement.what is the congruency that proves they are congruent? what is the perimeter of ∆pqr?

When a valve is open 281 gallons of water go through it in one hour the number of gallons that would go through in 94 hours is

Your car's gasoline tank holds 18 gallons of gasoline. on a trip in canada, the tank is one-quarter full. you want to fill the tank. how many liters of gasoline are needed to fill the tank