Consider the sequence of steps to solve the equation: 5(x - 3) = 7x 2 step 1 ⇒ 10(x - 3) = 7x step 2 ⇒ 10x - 30 = 7x step 3 ⇒ 3x - 30 = 0 step 4 ⇒ 3x = 30 step 5 ⇒ x = 10 identify the property of equality which gets us from step 3 to step 4.

Assume cd | ab are parallel. find m2. a) x= 50° (b) x = 70° c) x = 30° d) x = 60

What is the standard deviation of the following data set rounded to the nearest tenth? 3, 17, 18, 15, 12, 21, 9

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