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Shania's test scores in 8 subjects were 88, 91, 85, 74, 69, 72, 80, and 87. shania found the middle number of her scores. which type of measure did she find?

The parabola opens: y=√x-4 (principal square root) up down right left

Given that ot =5, xt=12, and ox= 13 is xy tangent to circle o at t? explain.