Exponential Growth and Decay After the preliminary distribution of a vaccine the infected portion of the population was shown to decrease by 36.7% over 5 weeks. How many weeks will it take for the number of infected individuals to be one half of its initial amount? [3] Analytic Trigonometry (Part 1) 1. Consider the angle a. Convert this angle to degrees. [1] b. Draw a picture of this angle in standard position and label the related acute angle. [2] C. State the related acute angle. [1] d. Determine the exact value of sin - [1] 2. Consider the equation cos 8 = - ! where O S A S 21 a. What quadrant/quadrants could 0 possibly be in? [1] b. Use the unit circle/special triangles to determine the possible value/values for 0. [1]