(-1/2+√3/2i)^-2 find out the real and Imaginary part

Using the side-splitter theorem, daniel wrote a proportion for the segment formed by luke segment de. what is ec?

Acertain volume of water contains 100000 hydrogen atoms and 50,000 oxygen atoms how many hydrogen atoms are in a volume of water containing 4 million oxygen atoms

Delbert keeps track of total of the total number of points he earns on homework assignments, each of which is worth 60 points. at the end of the semester he has 810 points. write an equation for delbert’s average homework score a in terms of the number of assignments n.