A rectangle has a length of x and a width of 5x3 + 7 – x2. Find the perimeter of the rectangle when the length is 5 feet.
The polynomial that models the perimeter of the rectangle is?
The perimeter is in
feet.

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