Mathematics, 14.08.2020 04:01 LittleNerd2852
The Environmental Protection Agency (EPA) advocates a maximum arsenic level in water of 10 micrograms per liter. Below are results of EPA tests on randomly chosen wells in a suburban Michigan county. Research question: Is the mean arsenic level affected by well depth and/or age of well? Arsenic Level in Wells (micrograms per liter) Age of Well (years) Well Depth Under 10 10 to 19 20 and Over Shallow 5.4 6.1 6.8 4.3 4.1 5.4 6.1 5.8 5.7 Medium 3.4 5.1 4.5 3.7 3.7 5.5 4.3 4.4 4.6 Deep 2.4 3.8 3.9 2.9 2.7 2.9 2.7 3.4 4.0
Answers: 3
Mathematics, 21.06.2019 18:00
Ling listed all of the factors of a mystery number: 1,2,4,8,16,32 what is the mystery number?
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Tickets to a science exposition cost $5.75 each for studentd and $7.00 for adults.how many students and adults went if the ticket charge was $42.75
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Mathematics, 22.06.2019 02:00
The plant were you work has a cylindrical oil tank that is 2.5 feet across on the inside and 10 feet high. the depth of the oil in the tank is 2 feet. about how many gallons of oil are in the tank?
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The Environmental Protection Agency (EPA) advocates a maximum arsenic level in water of 10 microgram...
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