The variable z is inversely proportional to x. when x is 16, z has the value 0.875. what is the value of z when x= 21?

Express the following as a function of a single angle, cos(60) cos(-20) - sin(60) sin(-20)

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.

The following division is being performed using multiplication by the reciprocal find the missing numbers is 5/12 divided by x/3 equals 5/12 times x/10 equals 1/x