Simplify the expression d^-2/(d^6)(d^-3).its an emergency..anyone can ?

Using the completing-the-square method, find the vertex of the function f(x) = 2x2 − 8x + 6 and indicate whether it is a minimum or a maximum and at what point. maximum at (2, –2) minimum at (2, –2) maximum at (2, 6) minimum at (2, 6)

Create a data set with 8 points in it that has a mean of approximately 10 and a standard deviation of approximately 1.

Me n o w. i need t h i s. 10 points