If two circles intersect at two points, prove that their centres lie upon the perpendicular bisector of the common chord.​

What is the perimeter, p, of a rectangle that has a length of x + 8 and a width of y − 1? p = 2x + 2y + 18 p = 2x + 2y + 14 p = x + y − 9 p = x + y + 7

Question: what is the value of x 4x-2= (-7) +5x. it would be greatly appreciated if someone could actually explain to me step by step

When 142 is added to a number the result is 64 more then 3 times the number. option 35 37 39 41