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• which statements describe how the united nations promotes peace and solves international disputes? select four options.
  
• a 2-column table with 9 rows. the first column is labeled x with entries negative 8, negative 6, negative 4, negative 2, 0, 2, 4, 6. the second column is labeled f of x with entries negative 16, negative 8, 0, 8, 16, 32, 64, 128. which could be the entire interval over which the function, f(x), is negative? (–8, –2) (–8, 0) (–∞, –6) (–∞, –4)
  
• the following bar chart shows how many lawns each volunteer mowed during a service project. a bar graph with the vertical axis labeled number of lawns. the horizontal axis is labeled volunteer. the bar line for person shows the following: julia bar line extends to 5, devon bar line extends to 6, ravi bar line extends to 5, yutaka bar line extends to 6, and camila bar line extends to 9. \[0\] \[2\] \[4\] \[6\] \[8\] \[10\] find the median number of lawns. lawns
  
• which sample fairly represents the population? select two options. measuring the height of every fiftieth person on the school roster to determine the average height of the boys in the school calling every third person on the soccer team’s roster to determine how many of the team members have completed their fundraising assignment observing every person walking down main street at 5 p.m. one evening to determine the percentage of people who wear glasses 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
  
• a student is using shadows and similar triangles to indirectly measure the height of a building. which of the following proportions could not be used to accurately find the height?
  
• mandisa draws a rectangle to represent the area of her yard. the area can be represented by 10x2 – 13x – 14. what expressions can mandisa use to represent the length and width of her yard? (2x + 2) and (5x – 7) (5x – 2) and (2x + 7) (x – 2) and (10x + 7) (10x + 2) and (x – 7)
  
• which statement best describes the main idea of the excerpt? a lot of the nation’s property has been destroyed. the nation has lost an immense amount of wealth. human lives are worth more than material items. the nation will get back everything that was lost.
  
• which of the following best explains how bacteria can be genetically engineered to produce a desired antigen?
  
• at a game show, there are three doors marked 1, 2, and 3. a contestant is allowed to select one of three keys labeled a, b, and c and then use it to open one of the doors. the sample space showing the ways in which a contestant can select a key and a door is represented in the table. door 1 2 3 key a a-1 a-3 b b-1 b-2 b-3 c c-1 c-2 c-3 what is the missing term in the table? if there were two doors instead of three doors, what would the sample size be? a. the missing term is a-2. the sample size would be 6. b. the missing term is c-2. the sample size would be 8. c. the missing term is c-2. the sample size would be 9. d. the missing term is b-2. the sample size would be 12.
  
• which refers to the ratio of output work to input work of a machine expressed as a percent? total work wattage efficiency power