Find all points(s) of intersection of the line y=2x and the circle x^2+y^2=5
A) (1,2)
B) (1,2) and (-1, -2)
C) (1/2, 1) and (-1/2, -1)
D) (sqrt15/3, 2 sqrt15/3) and (sqrt15/3, -2 sqrt15/3)

The first few steps in solving the quadratic equation 9x2 + 49x = 22 ? 5x by completing the square are shown. 9x2 + 49x = 22 ? 5x 9x2 + 54x = 22 9(x2 + 6x) = 22 which is the best step to do next to solve the equation by completing the square? 9(x2 + 6x + 3) = 25 9(x2 + 6x + 3) = 49 9(x2 + 6x + 9) = 31 9(x2 + 6x + 9) = 103

The standard deviation for a set of data is 5.5. the mean is 265. what is the margin of error?

How does reflecting or rotating a figure change the interior angles of the figure?