Discover Questions

I made a typo earlier, excuse me. I still don’t understand how to do this. Find b such that f(x)=-4(x^2)+bx+3 has a maximum value of 50? What is ∞^0? What is 0∞? Calculate stress and strain in round bar 12mm in diameter and 150mm long with tensile force of 400N acting on it? What is the nuclear decay equation for Carbon-14? #Chemistry? If a and b are roots of equation x^2 +x -12 =0 such that a>b then equation whose roots are 2a and 3b is ?Please!?