From 12x ­- 6y + 9z subtract -x­ -3z + 6y . a) 12z ­- 13x -­ 12y b) 13x + 12y + 12z c) - ­13x -­ 12y ­- 12z d) 13x -­ 12y + 12z

Evaluate the following expression 1/3^2

Zack notices that segment nm and segment pq are congruent in the image below: which step could him determine if δnmo ≅δpqr by sas? (5 points) segment mo ≅ segment qr segment on ≅ segment qp ∠ n ≅ ∠ r ∠ o ≅ ∠ q

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