Review the graph. On a coordinate plane, the y-axis labeled imaginary and the x-axis is labeled real. Point z 1 is (5, 0) and point z 2 is (0, negative 6).

Given a pair of complex numbers, z1 = 5 and z2 = –6i, let z3 = 3i + z1 and z4 = z2 – 2. In which quadrant is z3 – z4 located?

What are “like terms”? why can we only add like terms?

Using elimination, what is -4x+2y=-12 4x+8y=-24

Ur environment is very sensitive to the amount of ozone in the upper atmosphere. the level of ozone normally found is 4.04.0 parts/million (ppm). a researcher believes that the current ozone level is not at a normal level. the mean of 2525 samples is 4.44.4 ppm with a standard deviation of 0.80.8. assume the population is normally distributed. a level of significance of 0.020.02 will be used. make the decision to reject or fail to reject the null hypothesis. answer tables