by nsguy1350 » Tue Mar 20, 2012 11:42 pm
15. If the triangle has a circumscribed circle, then the radius is [unparseable or potentially dangerous latex formula], where a,b,c are the sides, and K is the area (use Heron's formula).
19. I # at those.
43. Since it's triangular numbers and they start with 1/3, just do [unparseable or potentially dangerous latex formula].
52. Evaluate the derivative at [unparseable or potentially dangerous latex formula].
[unparseable or potentially dangerous latex formula]. Evaluating gives -6.
58. [unparseable or potentially dangerous latex formula]. Set that equal to the x value of the inverse function, to get x = -3/14.
2013 District 1/Region:
NS - 319/355
MA - 340/332
CA - 294/287
SC - 344/292
CS - 212/124 (fail)