How many significant figures will the answer to the following problem have? you do not have to solve the problem. 8.823 - 3.42 =

Parabolas y=−2x^2 and y=2x^2+k intersect at points a and b that are in the third and the fourth quadrants respectively. find k if length of the segment ab is 5.

Let x = a + bi and y = c + di and z = f + gi. which statements are true?

If each bricks costs and he can only buy one brick how much will it cost him to get the material to put around the outside of his garden?