Nystce: Math Multi-Subject Part 2 Study Guide Rated A+

Forming an x outside the circle {Ans: -when 2 secants intersect outdid a circle, the measure of the angle forms is equal to half the difference of the 2 arcs that lie between the 2 secants <1 = 1/2(arc4-arc3)}sum of interior angles of a polygon {Ans: Sum=180(n-2), where n is the number of sides.}Factoring Rules {Ans: Perfect square trinomials: x^2+2xy+y^2=(x+y)^2 or x^2-2xy+y^2=(x-y)^2 Sum of two cubes: x^3+y^3=(x+y)(x^2-xy+y^2) Difference of two cubes: x^3-y^3=(x-y)(x^2+xy+y^2)}Tree diagram {Ans: A diagram used to show the sample space. -you can also just list possibilities as well to organize outcomes}ellipse formula {Ans: (x-h)^2/a^2 + (y-k)^2/b^2 = 1 *where (h, k) is the center and the focus are the points (h, k+c) and (h, k-c). Whee c^2=a^2-b^2}regular polygon {Ans: a polygon with all sides and all angles equal}