y is inversely proportional to (x+1)². y=50 when x=0.2. (a) Write y in terms of x. K K y= ・ x+17 72 Y 72 Y- (x+1)² (x+1)2 K=4(x+1)² y (x+1)² k = (50) (0.2+1) 2 k=72

The rate of change of an autocatalytic chemical reaction is kQxkx2 where Q is the amount of the original substance, x is the amount of substance formed, and k is a constant of proportionality. Factor the expression.

Find the inverse of the function. f(x)=2x+33x1

Change the function y=3(0.5)x to one having e as the base.