8. A submarine starts at sea level and descends 50 m every 5 min. a) Make a table of values of the submarine's depth, using intervals b) Graph the submarine's depth using the table of values. ach s is of 5 min, up to 30 min do What patterns you see in the table and the graph? d) Suppose the submarine had started to descend from a depth of 219 m. What relation would model the submarine's location c) over time? equation from sea level to a depth of 428 m. f) Solve this equation using your graph. g) How does the equation connect to e) Write an to show how long the submarine would take to go the graph? Lesson 5.4 9. State whether a graph, inverse operations, or some other method. Justify your choice. Solve and verify each equation. would solve each equation usinga table of values, you a) 2x- 5= 7 d) -2.1k 5.6 -20.2 4 3,x0. 3 2x 10 X 3 b) 5x e) -8.75z+ 12.5= 12.5 3 x 0. f) -501 3x= 27 c) -6 2 10. Amit joined a book club. The first six books are free, but after that book. $8.98 per he pays a) Write an expression for the cost of b books. b) How much would Amit pay for eight books? c) Amit ordered some books for $53.88. Write, solve, and verify an equation to determine how many books he ordered. 11. Write an equivalent equation you can use to solve each equation Solve and verify each equation. (-19e +3= - 32 d) a) + 1 = 4 0 = 3 e) ht b)3= 12 - 3 = 12 4 I 3 f) # 0. Z = 5, a t 0. c) 5, a 0. ran model using 2/3

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Estimation

A new framework of data analysis where the new statistical methods are used for interpreting the results and analyzing the data is known as estimation in statistics.