Write V-192 in simplest radical form

Write the system of equations represented by the matrix. 0 1 2 4 -2 3 6 9 1 0 1 3

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).

Tom had a total of $220 and he spent $35 on a basketball ticket . what percent of his money did he have left?