In the second sentence, the adjective is delighted. In the third sentence, the adjective is large. The first sentence doesn't contain an adjective.
The correct answer is 2. is ready to share and answer questions.
Answer:
What are the options of answers
Explanation:
Answer:
Demand for recycled paper has increased as consumers have become more aware of the environmental issues surrounding waste disposal. Paper is a natural raw material made from renewable wood and plants. Recycled paper is made from waste paper and paperboard. Both new paper and recycled paper contain traces of heavy metals. However, some types of recycled paper contain more heavy metals than new paper due, in part, to the inks used for printing or adding color to the original paper. Metals can migrate from the paper packaging and containers used for food to the food itself. This metal migration is controlled and monitored to reduce the exposure of humans to heavy metals. Food agencies in each country determine the limit of cadmium, zinc, nickel, and copper in packaging materials. Most countries impose a limit of heavy metals in recycled paper not to exceed 100.0 ppm or 100.0 . The limit for lead in eggfruit, or vegetable-packaging is lower-not to exceed-20.0 mg/kg. The table in Figure a lists the results of the analysis of samples of recycled paper produced by a manufacturer during a three-month period. The goal of the manufacturer is to reduce the amount of heavy metals-especially lead-in the recycled paper it produces and sells. From March to May, the manufacturer varied the
methods of production each month to determine which method would produce paper with the lowest metal content. Each month, lab technicians cut small samples of recycled paper with an area of 1.000 and a thickness of 0.0500 The technicians then prepared the samples for analysis. The average density of the samples is Use the information provided in the figure to answer the
following questions:
a. Did the company reduce the amount of lead in its product between March and May?
b. Which metal was not reduced?
c. Each month's sample represents a different manufacturing process. Which process would you recommend the manufacturer choose to continue to use over the next year while additional processes are tested? Why?
d. What is the total amount of the five metals for the April sample (in mg/kg)?
e. What is the total mass (in mg) of the five metals for the April sample found in the 1.000 sample?
f. Lead has four stable isotopes: 204
Explanation:
so this problem gives us a lot of information and asked us to answer several questions. So, Letter A says, did the company make reduce the amount of lead in its product between March and May? And the answer is yes. The PB levels went from 3.5 to 2.8 22.4, so it was reduced. Be asks which medal was not reduced. And that would be sync because England from 2.723 point 2.723 2 to 3.7 so zinc increased. It was not reduced. See says each month sample represents a different manufacturing process.
Option 1:
Measuring the heights of every fiftieth person on the school roster to determine the average heights of the boys in the school
Comment: this might not be a good idea for fairness as we only wish to determine average height of the boys. Taking a group of 50 people randomly, might not give us the same number of boys every time.
Option 2:
Calling every third person on the soccer team’s roster to determine how many of the team members have completed their fundraising assignment
Comment: The context doesn't seem to need a sampling. The number of players in a soccer team is considerably small. We can find exact data by asking in person.
Option 3:
Observing every person walking down Main Street at 5 p.m. one evening to determine the percentage of people who wear glasses
Comment: To get a more accurate result and fairer sampling, the period of observing could have been longer, for example, observing for 12 hours on that day, or an alternative is to observe at 5 pm for 7 days in a row. It could happen that no one walking down the Main street precisely at 5 pm wears glasses, or it could happen the other way around.
Option 4:
Sending a confidential e-mail survey to every one-hundredth parent in the school district to determine the overall satisfaction of the residents of the town taking a poll in the lunch room (where all students currently have to eat lunch) to determine the number of students who want to be able to leave campus during lunch.
Comment: This sampling does fairly represent the population, although it might be an idea to scale down the sample population, i.e. every fiftieth parent.
Answer: Option 4
