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

Given f(x)= 9x+1 and g(x)=x^3, choose the expression (f*g)(x)

List x1, x2, x3, x4 where xi is the left endpoint of the four equal intervals used to estimate the area under the curve of f(x) between x = 4 and x = 6. a 4, 4.5, 5, 5.5 b 4.5, 5, 5.5, 6 c 4.25, 4.75, 5.25, 5.75 d 4, 4.2, 5.4, 6