Ahalf life of carbon-14 is 5700 years, if you started with 200 gram sample of carbon-14, how much c-14 would be left after 28500 years? show how to.

For the quadratic function [tex]y=(x+4)^2-1[/tex] , do the following: a) rewrite the function in the standard form, b) rewrite the function in intercept form, c) find the vertex, d) find the y-intercept, e) find the x-intercepts.