Hi please help 1-4

1. [-/1 Points] DETAILS WANEFMAC7 15.4.001. MY NOTES ASK YOUR TEACHER PRACTICE ANOTHER Solve the given optimization problem by using substitution. Find the maximum value of f(x, y, z) = 5 - x2 - y2 - z2 subject to z = 5y. max = Also find the corresponding point (x, y, z). ( x, y, z) =( Need Help? Read It Watch It 2. [-/1 Points] DETAILS WANEFMAC7 15.4.004. MY NOTES ASK YOUR TEACHER PRACTICE ANOTHER Solve the given optimization problem by using substitution. Find the minimum value of f(x, y, z) = 2x2 + 2x + y2 - y + z2 - z - 1 subject to z = 2y. fmin = Also find the corresponding point (x, y, z). ( x, y, z) = Need Help? Read It 3. [-/1 Points] DETAILS WANEFMAC7 15.4.006. MY NOTES ASK YOUR TEACHER PRACTICE ANOTHER Solve the given optimization problem by using substitution. Minimize S = xy + xz + yz subject to xyz = 5 with x > 0, y > 0, z> 0. Smin = at (x, y, z) = Need Help? Read It 4. [-/1 Points] DETAILS WANEFMAC7 15.4.008. MY NOTES ASK YOUR TEACHER PRACTICE ANOTHER Use Lagrange multipliers to solve the given optimization problem. Find the maximum value of f(x, y) = xy subject to 3x + y = 102. fmax = Also find the corresponding point (x, y). (x, y ) =