Has the marrying age of a man changed over the years? The United States Bureau of the Census takes a formal count of everyone in the U. S. every 10 years and has provided the following data that gives the median age of an American man at the time of his first marriage. 1910 1920 1930 1940 1950 1960 1970 1980 1990 Year Median Age 2000 26.8 25.1 24.6 24.3 24.3 22.8 22.8 23.2 24.7 26.1 a. Determine the average rate of change in median age per year from 1930 to 1960. -0.5 years of age per year b. 20 years of age per year -0.05 years of age per year d. +0.05 years of age per year C.

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.