Problem #1: In a murder investigation, the temperature of the corpse was 33 C at 1:30pm and 24 C 2 hours later. Normal body temperature is 37 C and the surrounding temperature was 8 C. How long (in hours) before 1:30pm did the murder take place? Enter your answer symbolically, Problem #1: as in these examples Just Save Submit Problem #1 for Grading Problem #1 Attempt #1 Attempt #2 Attempt # 3 Your Answer: Your Mark: Problem #2: Let y(x) be the solution to the following initial value problem. xy' + oxy = In(x) X x> 0, y(1) = 4. Find y(e). Enter your answer symbolically, Problem #2: as in these examples Just Save Submit Problem #2 for Grading Problem #2 Attempt #1 Attempt #2 Attempt #3 Your Answer: Your Mark: Problem #3: In a mixing vat there are initially 300 litres of volatile liquid. 4 litres of fresh liquid are added per hour, but 20% of the current content of the vat is lost each hour due to evaporation. How many litres of liquid are there after 4 hours? Screenshot Enter your answer symbolically, lem #3: as in these examples( A) y2 - x2 = 4 (B) y2 - x2 = 3 ( C) x2 - 12 = 4 (D) x2 - 12 = 3 (E) 12 - x2 = 1 ( F) x2 - y = 1 (G) y2 - x2 = 2 (H) x2 - 12 = 2 Problem #4: Select v Just Save Submit Problem #4 for Grading Problem #4 Attempt # 1 Attempt #2 Attempt #3 Your Answer: Your Mark: Problem #5: Use the given graphs to sketch the parametric curve x = f (t), y = 8 (t). x =f(t) y = g(t) 21 -1 -2 -1 N (A) (B) 2 Screenshot -1 0(C) yl - 2 -1 x (E) (F) N y 1 -2 (G) (H) 21 Problem #5: Select V Just Save Submit Problem #5 for Grading Problem #5 |Attempt #1 Attempt #2 Attempt # 3 Your Answer: Your Mark: Problem #6: The parametric curve x = 414 + 3t2 + 1, y = 3t - 3t has two tangent lines at the point (8, 0). Find their slopes. TV Enter your answer symbolically, as in these examples Separate your answers with a comma