100
he equation of an ellipse E is
(X-7)^2 /81 + (Y+5)^2 /16 =1.the center (h,k)=(7,−5).
81 is bigger than 16 so the major radius i√81=9 and the minor radius is √16=4.
the center (h,k)=(7,−5).
81 is bigger than 16 so the major radius i√81=9 and the minor radius is √16=4.