.6931 = ln(2)
math for liberal arts
invalid. knowing something about ~p tells you nothing about p. If it's not raining, I'll go to the store. It's raining. no telling whether you go to the store or not. You can say that if you don't go to the store, it's raining. (contrapositive)
veryical velocity is 88sin35° = 50.47 ft/s So, y = 50.47t - 16t^2 set y=0 and solve for t.
what, no calculator?
xy=384 so, y = 384/x f = 2x+3y = 2x + 1152/x df/dx = 2 - 1152/x^2 min f is when df/dx=0, at x=24 So, the field is 24x16 f = 48+48=96 as usual in these problems, the fencing is divided equally among lengths and widths.
in x years since 1985, the salary is s(x) = 8000+600x so, plug in x = 2012-1985
this just a parabola, with vertex at t = -2vo/-9.8