5 . The population of a small town is modeled by the equation ILIECJrsr'Et 1a'here t is measured in years. In approximately how many years {rounded to the nearest year) will the town's population reach EELDDD? 6. A scientist begins with EDD grams of a radioactive substance. After one hour. the sample has decayed to ETD grams. a. What is the decay rate. giye exact answer?I b. To the nearest hundredth. what is the half-life of this substance? T. A wooden artifact from an archeological dig contains T9 percent of the carbon-14 that is present in living trees. To the nearest year. about how many years old is the artifact? [The half- life of carbon-14 is 5730 years.) 3. Find all six trigonometric functions of IE? if (-2.5) is on the terminal side of E. 9. Find the remaining trigonometric functions of IE? if cscE = 4 and E terminates in quadrant