What is the length of a diagonal of a cube with a side length of 1 cm?

Write a story that matches with the expression 42x-5 pls hurry

Find the center and the radius of the circle with the equation: x^2-2x+y^2+4y+1=0?

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