Seven women and nine men are on the faculty in the mathematics department at a school. a) How many ways are there to select a committee of five members of the department if at least one woman must be on the committee? b) five members of the department if at least one woman and at least one man must be on the committee

Astuntman jumping off a 20-m-high building is modeled by the equation h=20-5t^2, where t is the same in seconds. a high-speed camera is ready to film him between 15m and 10m above the ground. for which interval of time should the camera film him?

In the figure below, ∠dec ≅ ∠dce, ∠b ≅ ∠f, and segment df is congruent to segment bd. point c is the point of intersection between segment ag and segment bd, while point e is the point of intersection between segment ag and segment df. the figure shows a polygon comprised of three triangles, abc, dec, and gfe. prove δabc ≅ δgfe.

Xy x xy if a and b are positive integers such that a*b=9 and b*a=72 what is the value of a/b