What is the following sum? 16x²y +4/3/54x8,5
4x{X/)+12+y(2/28)
8x{X/Xy) + 12x2y? (1/6)
16x®y/2y2
[
48x©y(2/2)

PLEASE HELP

Iam so stuck. what is the worked out answer for this question?

The contents of 3838 cans of coke have a mean of x¯¯¯=12.15x¯=12.15. assume the contents of cans of coke have a normal distribution with standard deviation of σ=0.12.σ=0.12. find the value of the test statistic zz for the claim that the population mean is μ=12.μ=12.

The diagonals of a quadrilaretral intersect at (-1,4). one of the sides of the quadrilateral is bounded by (2,7) and (-3,5) determine the coordinates of the other side in order for the quadrilaretral to be a square.