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The graph shows the percentage of high school seniors who used alcohol or marijuana during the 30 days prior to being surveyed. The data can be described by the following mathematical models, where n is the number of years after 1980, A is the percentage of seniors using alcohol, and M is the percentage of seniors using marijuana. A=-0.8+57 M=-0.5n+23 Percentage Alcohol and Marijuana Use by High School Seniors 80- 70- 60- 504 404 30- 204 104 04 1980 1985 1990 1995 2000 05 09 Year Alcohol Marijuana Q

The graph shows the percentage of high school seniors who used alcohol or marijuana during the 30 days prior to being surveyed. The data can be described by the following mathematical models, where n is the number of years after 1980, A is the percentage of seniors using alcohol, and M is the percentage of seniors using marijuana. A=-0.8+57 M=-0.5n+23 Percentage Alcohol and Marijuana Use by High School Seniors 80- 70- 60- 504 404 30- 204 104 04 1980 1985 1990 1995 2000 05 09 Year Alcohol Marijuana Q

MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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K The graph shows the percentage of high school seniors who used alcohol or marijuana during the 30 days prior to being surveyed. The data can be described by the following mathematical models, where n is the number of years after 1980, A is the percentage of seniors using alcohol, and M is the percentage of seniors using marijuana. A=-0.8+57 M=-0.5n+23 Percentage 22889222 804 70- 60- Alcohol and Marijuana Use by High School Seniors 50+ 40- 30- 20- 10- Alcohol Marijuana 04 1980 1985 1990 1995 2000 05 09 Year a. Use the appropriate line graph to determine the percentage of seniors who used marijuana in 2005. % (Type a whole number.) o 53
Transcribed Image Text:K The graph shows the percentage of high school seniors who used alcohol or marijuana during the 30 days prior to being surveyed. The data can be described by the following mathematical models, where n is the number of years after 1980, A is the percentage of seniors using alcohol, and M is the percentage of seniors using marijuana. A=-0.8+57 M=-0.5n+23 Percentage 22889222 804 70- 60- Alcohol and Marijuana Use by High School Seniors 50+ 40- 30- 20- 10- Alcohol Marijuana 04 1980 1985 1990 1995 2000 05 09 Year a. Use the appropriate line graph to determine the percentage of seniors who used marijuana in 2005. % (Type a whole number.) o 53
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