Question 3 and 5 only

Lu Quiz: Differential Equations X VA Quiz: Diff assign.net/web/Student/Assignment-Responses/last?dep-31722178 3. [-/3.5 Points] DETAILS SCALCET9 9.3.001. Solve the differential equation. dy - 9x2 2 dx for y + 0 4. [-/3.5 Points] DETAILS SCALCET9 9.5.003. Determine whether the following differential equation is linear. ue' = 4t + tou dt O linear O not linear Viewing Saved Work Revert to Last Response 5. [-/3.5 Points] DETAILS SCALCET9 9.3.048. The air in a room with volume 180 m" contains 0.2% carbon dioxide initially. Fresher air with only 0.05% carbon dioxide flows into the room at a rate of 2 m / min and the mixed air flows out at the same rate. Find the percentage p of carbon dioxide in the room as a function of time t (in minutes). p(t) = What happens to the percentage of carbon dioxide in the room in the long run? lim p(t) - 1%