MATH 130 Midterm: MATH130 ALL-SECTIONS SPRING2012 MID SOL 1

• School: University of Maryland
• Department: Mathematics
• Course: MATH 130
• Professor: All

Document Summary

February 23, 2012 math 130 exam 1 (21-4 & 3. 1-4) Your answer should be in the form kxe x x x. 1. b. (7 points) suppose ln(x) = 5 and ln(y) = 2. Use logarithm properties to simplify and evaluate ln ln y. 2 y ln ln3 e ln2 x y. Find the exact value of the decay constant then use it to write the exponential decay equation for. 1. d. (7 points) use your equation from 1. c. i to answer the following question: if you start with 18 grams of. Give both an exact answer in simplest form and a decimal approximation to the nearest hundredth. , find the average rate of change of f on the interval from x = 2 to x = 1. 2. a. (6 points) the line y = x lies at a 45 angle. Convert 45 to radians, and also state or calculate the sine and tangent (exact values) for this angle.