- For the statistical test ANOVA, why does variances have to be equal in order for it to work?

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Solve the equation for x.
e^x = 85? Diameter of a wheel 80cm. If the wheel rotates through an angle of 200degrees, how many cm does it move? Show steps please!? W800: How many degrees C° does w800 reach? Find all of the actual roots of the polynomial: x^3 - 2x^2 + 5x + 26 = 0? Verify that M(u,v)=A +u(B-A) +v(C -A) ( A,B,C vectors) is a parametric representation of surface of the triangle A(1,0,0) B(0,-1,2) C(0,2,1)?