Equilateral triangle abc is rotated x° clockwise about a point o that is not on the triangle to produce triangle a'b'c'. determine whether each statement below is true for all such rotations, true for some such rotations, or not true for any such rotations.

The distribution of the amount of money spent by students for textbooks in a semester is approximately normal in shape with a mean of $235 and a standard deviation of $20. according to the standard deviation rule, how much did almost all (99.7%) of the students spend on textbooks in a semester?

Given that y varies directly to the square root of (x + 1), and that y = 1 when x = 8,(a)express y in terms of .x,(b)find the value of y when x = 3,(c)find the value of x when y = 5.

Solve for x: 5/3 x = 20/21 it's fraction. remember to simplify your fraction