1. [-114.28 Points] DETAILS HARMATHAP12 14.1.009. MY NOTES ASK YOUR TEACHER PRACTICE ANOTHER Evaluate the function at the given values of the independent variables. z=x3+7xy+y2; x=2,y=2 Need Help? _ 2. [-l14.28 Points] DETAILS HARMATHAP12 14.1 .012. ASK YOUR TEACHER PRACTICE ANOTHER Evaluate the function at the given values of the independent variables. 2 z=yX +X; x:2,y=1 X Y Z = i l Need Help? __' 3. [-114.28 Points] DETAILS HARMATHAP12 14.1.017. MY NOTES ASK YOUR TEACHER PRACTICE ANOTHER Evaluate the function as indicated. z(x, y) = xex + 3'; find 2(5, -5) es. _5) = :1 Need Help? 4. [-114.28 Points] DETAILS HARMATHAP12 14.1.023. MY NOTES ASK YOUR TEACHER PRACTICE ANOTHER The future value 5 of an investment earning 5% compounded continuously is a function of the principal P and the length of time t that the principal has been invested. It is given by S = rho, t) = Peso-\"5f. Find f(2000, 20). (Round your answer to the nearest cent.) 55:] Interpret your answer. Q If $20 was invested initially, this is the amount (in dollars) that you would need to deposit each year so that the account earns $2000 in interest over a period of 5 years. 0 [f $2000 was invested initially, this is the amount (in dollars) that would be in the account after 20 years. 0 If $20 was invested initially, this is the amount (in dollars) that you would need to deposit each year so that the account reaches $2000 in 5 years. O If $2000 was invested initially, this is the amount of interest (in dollars) that the account would earn over a 20-year period. Need Help? .2313