For questions 1-4, write each complex number in rectangular form. plot and label (with a-f corresponding to 1-4) each point on the polar axes below.
1. 2(cos135° + isin135°)
2. 3(cos240° + isin240°)
3. 5(cos(5π / 4) + isin(5π / 4))
4. 4(cos(3π / 2) + isin(3π / 2))

Which is a graph of a proportional relationship?

Aplane is taking off from bangladesh headed to new york city. at the same time, a plane from new york city is headed to bangladesh is also taking off. the plane bound to new york city is traveling at 600 mph, while the plane traveling to bangladesh is traveling at 400 mph. how far from new york city will the two planes meet if the distance between new york city and bangladesh is 8,000 miles?

The figure below shows rectangle abcd and the triangle eca on a coordinate plane.which of the following expressions represents the perimeter of triangle of triangle eca in units