Which is the equation of a parabola with a directrix at y = −3 and a focus at (−2, 3). y = one twelfth(x − 2)2 y = one twelfth(x + 2)2 y = −one twelfth(x + 2)2 y = −one twelfth(x − 2)2
urgent don't delete

What’s -11-33k and factor each expression completely

F(x)=5/6x+3 which of the following is true

Amass weighing 16 pounds stretches a spring 8/3 feet. the mass is initially released from rest from a point 2 feet below the equilibrium position, and the subsequent motion takes place in a medium that offers a damping force that is numerically equal to 1/2 the instantaneous velocity. find the equation of motion if the mass is driven by an external force equal to f(t)=cos(2t).