Which expression is equivalent to 1

_ _ (20z +24)

4

A. 5x+24

B.-5z-6

C.-5z+6

D.5z+24

The number of revolutions of two pulleys is inversely proportional to their diameters. if a 24-inch diameter pulley making 400 revolutions per minute is belted to an 8-inch diameter pulley, find the number of revolutions per minute of the smaller pulley.

Find the value of x in each case. give reasons to justify your solutions! d q ∈ pr

Which is the focus of a parabola with equation y2=4x