Given the ellipse with equation (x-2)^2 over 16 plus (y-4)^2 over 9 =1 what are a, b,x1, and y1

Classify the polygon by its number of sides. state whether the polygon appears to be regular or not regular. a.heptagon, regular b. heptagon, not regular c. octagon, regular d. octagon, not regular

F(x)=x/2-2 and g(x)=2x^2+x-3 find (f+g)(x)

If the ratio of sum of the first m and n terms of an ap is m2 : n2 , show that the ratio of its mth and nth terms is (2m − 1) : (2n − 1).