[20pts] Consider the 3rd order ODE  y”’-4y”=0  a) Write do…

Consider the 3rd order ODE  y”’-4y”=0  a) Write down the auxiliary equation and solve it (justify your answer) b) Find the general solution of the differential equation c)  Find the solution that satisfies the initial values  y(0)=2, y'(0)=1, y”(0)=8   Note: You must show all your work to deserve the full credit assigned to any question.

A small, gram-negative coccobacillus is isolated from a lymp…

A small, gram-negative coccobacillus is isolated from a lymph node aspirate of a hunter with ulceroglandular symptoms after handling wild rabbits. The organism grows poorly on standard media, but appears after 48 hours on cysteine-enriched chocolate agar. The organism is oxidase negative and provides a weak postive catalase reaction. The technologist presumptively identifies the isolate as Francisella tularensis.  What is the next best step?

A pediatric patient is brought to the clinic with acute onse…

A pediatric patient is brought to the clinic with acute onset of bilateral conjunctival redness, tearing, and crusting around the eyes. Several classmates have developed similar symptoms. A conjunctival swab is collected for culture. Gram stain shows small, pleomorphic gram-negative coccobacilli. What is the most common cause of the described illness?