Answer Happy

Question 9 ow Find using the appropriate Chain Rule for w-y-8x³y where x-e' and y-e', and evaluate the partial derivative ats--2 and 1-3. Round your answer to two decimal places. O-8.83 O-5.89 O-6.62 O-2.72 O-8.09 Question 10 Ow Find using the appropriate Chain Rule for sy where x-&sins, y-coss, and z-². O GASE O 128'1 O 161's O 128 O 16a 5 p 5 pts

D Question 11 dz Differentiate implicitly to find given 7x+ sin(Sy+z)-0 05 07 cos(y+z) 7 cos(y+z) 0-5 Question 12 Find the directional derivative of the function at P in the direction of v. (x,y) - 3x-2xy + 7y. P(1.9). 7-(1+√31) 0-15+5√3 4 0-15+5√√3 2 O 21+5√√3 2 O 21+5√3

D Question 9 aw Find using the appropriate Chain Rule for w-y³-8x²y where x-e¹ and y-e', and evaluate the partial derivative X= ats--2 and ;- 3. Round your answer to two decimal places. -8.83. O-5.89 -6.62 -2.72 -8.09 Question 10 ow ds using the appropriate Chain Rule for w-x² + y² +2² where *=&rsins, y=&rcoss, and z- 8st². Find 64st 128¹: 5 pts O 165": O 128st O 16st 5 pts