What is the quadratic regression equation that fits these data? number of seconds= 0,1,2,3,4,5 height (in feet) = 12,13,15,13,9,7

The ksp expression for the system pbcl2(s) pb+2(aq) + 2 cl-(aq) is: [pbc12][pb+2][2cl-] [pb+2][cl-]2 [pb+2][2cl-]2 [pbcl2][pb+2][cl-]2 [pb+2][2cl-]2[pbcl2]

8litres of paint can cover 129.6 m². how much paint is required to paint an area of 243m²?

Parallelogram efgh is a rectangle. he = 6, and fe = 8. find ge: and find fj: