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23. [Probability] * Find the probability that a customer, who was selected at random from the survey, had a main meal and sweets but no entree. 28. [Area] * Find the area of the shaded region below. (Use It z 272) 4em 14 em or 0.375 3 1 8 ;24. 133 em 2 29. [Geometry] Use one of the postulates of congruence to find the values of x andy. [Volume] * A water-wise person places a brick 12 cm by 10 cm by 25 cm inside the toilet tank. How many liters of water will the family save each week if the toilet is flushed 13 times per day? [Hint: 1 L = 1000 cm3] 273 L 30. [Surtace Area] I s th eralOt y= 4 x= 3 25. [Angles] * Find the value of xc. .* ~ A rea Suuace sphere or a large sphere? 31. [Pythagorean Theorem / Trigonometry] 32. [Measurement /Time] [Problem * Solving 1] 4 * If 0 < x < 1, which of the following is the largest? E) x' C) x A)~ B)1. r x How many inches in 35 feet? 420 in. 27. small sphere Use the triangle below to calculate the value of cos e. 3~ 26. greater for a small HvOIume A [Perimeter] * Find the perimeter of the shape below. (Use It z 3.14) 33. ~ SOlving 2] * A pattern of triangles is made from matches, as shown below. To make the first triangle required three matches, the second figure required 9 matches. How many matches are required for the tenth figure in this pattern? o -1- .- [Problem - - - - - - - - - - 3 yd 7yd Figure 1 Figure 2 Figure 3 Whrte 3.7@ Copyright. Not to be reproduced Without permission. J. B. Wright - Echuca 2004 page 48