Quickly select all numbers that are prime. 21 / 23 / 11 / 17 / 15

Use set builder notation to represent the following set: { -3, -2, -1, 0}

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.

Proving the parallelogram diagonal theoremgiven abcd is a parralelogam, diagnals ac and bd intersect at eprove ae is conruent to ce and be is congruent to de