Where did I make the mistake? 17²=16²+8²-2(16)(8)cos x°
289=256+64-256cos x°
289=320-256cos x°
-320 -320
-31=-256cos x° (both sides divided by -256)
0.1=cosx°
Arc cosine, x=84.26

The soup shack usually makes tomato soup with 99 tomatoes for every 1212 cups of soup. today, they made 88 cups of soup with 66 tomatoes. how does today's soup compare to the usual recipe?

What is the distance from zero if a quadratic function has a line of symmetry at x=-3 and a zero at 4

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