Determine which postulate is illustrated by the statement. 48. m2DAC = m2DAE + m2EAB

50. m2DAC is equal to the absolute value of the difference between the

real numbers matched with AD and AC on a protractor.

What is the interquartile range of this data set? 2, 5, 9, 11, 18, 30, 42, 48, 55, 73, 81

Solve each quadratic equation by factoring and using the zero product property. 10x + 6 = -2x^2 -2

Given the system of equations presented here: 2x + 4y = 14 4x + y = 20 which of the following actions creates an equivalent system such that, when combined with the other equation, one of the variables is eliminated? multiply the second equation by â’4 to get â’16x â’ 4y = â’80 multiply the second equation by â’1 to get â’4x â’ y = â’20 multiply the first equation by 2 to get 4x + 8y = 28 multiply the first equation by â’1 to get â’2x â’ 4y = â’14