find the perimeter of the triangle defined by the coordinates (9.0), (-5,0), and (-10,6). (round to nearest tenth)
39.7 units
39.8 units
41.7 units
41.8 units
find the perimeter of a regular pentagon with sides of (3x + 5).

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