Which of the following is not a solution to the following inequality? 15x-15y>10 select one:
(4,-9)
(-4,13)
(15,7)
(-6,-8)

Find the gradient of f(x,y,z)equals=left parenthesis x squared plus y squared plus z squared right parenthesis superscript negative 1 divided by 2 baseline plus ln left parenthesis x right parenthesis x2+y2+z2−1/2+ln(xyz) at the point left parenthesis negative 2 comma 1 comma negative 2 right parenthesis(−2,1,−2).

Explain why the factor 1.5 is broke. into two numbers in the model.

What are the exclude value of mn+3m