Adult racehorse weights are normally distributed, with a mean of 500 kg and a standard deviation of 33 kg. approximately what percentage of the adult racehorses weigh more than 570 kg?

1.7%
98.3%
93.3%
0.12%

21

step-by-step explanation:

3; 9 is 8 to -4

step-by-step explanation:

check above link.

graphically?   well, you graph them both, the solutions is where they both intersect each other, since there are two solutions, meaning they will meet twice, or namely the linear will run into the quadratic curve twice, and where they meet, those x,y coordinates are the solutions to the system.