Use the clustering estimation technique to find the approximate total in the following question. what is the estimated sum of 709, 645, 798, 704 and 658?

Every rhombus is a square. true false

After being rearranged and simplified, which of the following equations could be solved using the quadratic formula? check all that apply. a. 9% + 3x2 = 14 + x-1 b. -x+ + 4x + 7 = -32-9 c. 5x + 4 = 3x4 - 2 d. 2x2 + x2 + x = 30

Lines a and b are parallel. what is the value of x? -5 -10 -35 -55