3. A system is described by the differential equation dy dt + 2y (t) = 3x (t). (a) Find the impulse response of this system. (b) Find the step response of this system. (c) Find the response to the signal x (t) = rect(t 3).

Brent works part-time at a clothing store. he earns an hourly wage of $15. if he needs to earn more than $45 in a day and works for x hours a day, which inequality represents this situation? a. 15x > 45 b. 15x < 60 c. x > 60 d. 15x < 45 e. x < 60

The height of a triangle is 4 in. greater than twice its base. the area of the triangle is no more than 168 in.^2. which inequalitycan be used to find the possible lengths, x, of the base of the triangle?

Which graph represents the parent function of y=(x+2)(x-2)