Simplify 1). (-1++6i) 2). (1-5i)(1-7i) 3). -9-3i/-i 4). -5-3i/1-9i

Point a is located at (0, 4), and point c is located at (−3, 5). find the x value for the point b that is located one fourth the distance from point a to point c. −0.25 −0.5 −0.75 −1

Anormally distributed data set has a mean of 176.3 and a standard deviation of 4.2. what is the approximate z-score for the data value of 167.9? 2.00 −2.00 8.4 −8.4

2x minus y equals 6, x plus y equals negative 3