Use a geometric representation to determine the difference of the complex numbers. z1 = - 2 - 6i

z = 7 - 15 i
z = -7 - 15 i
z = 7 + 15 i

For how answer my question this will be the last question can you answer in math subject

Do more republicans (group a) than democrats (group b) favor a bill to make it easier for someone to own a firearm? two hundred republicans and two hundred democrats were asked if they favored a bill that made it easier for someone to own a firearm. how would we write the alternative hypothesis?

Factor the expression using gcf 9b+45