Most popular questions and responses by PLEASE...HELP..ANYONE
  1. geometry!

    Γ is a circle with center O. A and B are points on Γ such that the sector AOB has a perimeter of 40. Amongst all circular sectors with a perimeter of 40, what is the central measure of ∠AOB (in radians) of the sector with the largest area?

    asked on March 13, 2013
  2. CALculus

    A train driver is driving along and he suddenly puts on the brakes. After he holds the brakes for t seconds, the train's sliding distance can be measured as d(t)=30t−0.6t^2 (in meters). When the train stops, how far did the train slide (in meters) after

    asked on March 13, 2013
  3. algebra

    What is the maximum value of x that satisfies x/4+5≤20?

    asked on March 13, 2013
  4. algebra..

    If f(x)=2x+5 and g(x)=8−3x^2, what is the value of f(g(4))−g(f(4))?

    asked on March 13, 2013