2h²+7h=0 what is the discriminant

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).

2.5 milligrams is equivalent to how many grams

Look at triangle wxy what is the length (in centimeters) of the side wy of the triangle?