If(a+3b+2c+6d)(a_3b_2c+6d)=(a_3b+2c _6d)(a+3b_2c_6d),prove that a: b=c: d.

Since opening night, attendance at play a has increased steadily, while attendance at play b first rose and then fell. equations modeling the daily attendance y at each play are shown below, where x is the number of days since opening night. on what day(s) was the attendance the same at both plays? what was the attendance? play a: y = 8x + 191 play b: y = -x^2 + 26x + 126

What are the solutions of the system? solve by graphing. y = -x^2 - 3x + 2 y = -2x + 2

What is the missing reason in the proof? segment addition congruent segments theorem transitive property of equality subtraction property of equality?