Half of the product of a number multiplied by itself three times

Which statement best explains why ben uses the width hi to create the arc at j from point k

Find the directions in which the function increases and decreases most rapidly at upper p 0p0. then find the derivatives of the function in these directions. f(x,y)equals=x squared plus xy plus y squaredx2+xy+y2, upper p 0p0left parenthesis 1 comma negative 4 right parenthesis

Cd is the perpendicular bisector of both xy and st, and cy=20. find xy.