URGENT (please) (15points) Use the model to find how long it will take for 75% of the population of a country to be infected with the a virus. This function models the amount of people free of infection over time. The infection rate 9.8%. Round to the nearest year. (Note: you do not need to know the initial population. If it helps you to look at a specific case with numbers come up with one to examine.)

(any method)

On the way home from visiting his family, vincent’s plane cruised at an altitude of 3.2 × 10^4 feet. he had heard that a man named felix baumgartner skydived from an altitude of 1.28 × 10^5 feet. vincent wants to know how much higher felix went on his skydiving trip. question 1 you have already seen how adding numbers works in either scientific notation or standard notation. but can you subtract numbers in scientific notation and get the same results as subtracting in standard notation? to find out, first solve vincent’s problem in standard notation. part a write the cruising altitude of vincent’s plane in standard notation.