Express the radical using the imaginary unit, iii.
Express your answer in simplified form.
\pm\sqrt{-72}=\pm±
−72

=±plus minus, square root of, minus, 72, end square root, equals, plus minus

Which one is the correct answer, and why?

Solve: 25 points find the fifth term of an increasing geometric progression if the first term is equal to 7−3 √5 and each term (starting with the second) is equal to the difference of the term following it and the term preceding it.

Agrid shows the positions of a subway stop and your house. the subway stop is located at (-5,2) and your house is located at (-9,9). what is the distance, to the nearest unit, between your house and the subway stop?