Hi uhm what is 2/3x - 1 = 1/2

Find the value of tan theta if sin theta = 12/13 and theta is in quadrant 2

The graph shows the distance y, in inches, a pendulum moves to the right (positive displacement) and to the left (negative displacement), for a given number of seconds x. how many seconds are required for the pendulum to move from its resting position and return? enter your answer in the box.

Describe the 2 algebraic methods you can use to find the zeros of the function f(t)=-16t^2+400.