29. Track and Field The box-and-whisker plots show the 36 best qualifying distances for the shot put events for men and women during the 2004 Olympics. Compare box-and-whisker plots. Describe any conclusions you can draw about Olympic-level male and female shot-putters.

    
    Image Long Description

Standardized Test Prep

SAT/ACT

30. Use a calculator to solve 2 x 2 − 7 x − 5 = 0 . 2 x squared , minus 7 x minus 5 equals 0 .  Round answers to the nearest hundredth.
    1. − 1.56 , − 4.44 negative , 1.56 , comma negative , 4.44
    2. − 5.44 , 1.56 negative , 5.44 , comma , 1.56
    3. − 0.61 , 4.11 negative , 0.61 , comma , 4.11
    4. − 5.56 , − 4.44 negative , 5.56 , comma negative , 4.44

31. Which function generates the table of values below?

    x	− 2 negative 2	− 1 negative 1	0	1	2
    y	27 8 27 over 8	9 2 9 halves	6	8	32 3 32 over 3

    6. 27 ( 2 3 ) x 27 . open , 2 thirds , close to the x
    7. 6 ( 4 3 ) x 6 . open , 4 thirds , close to the x
    8. ( 8 3 ) x open , 8 thirds , close to the x
    9. 6 ( 3 4 ) x 6 . open , 3 fourths , close to the x
32. A homeroom class consists of 6 boys whose last name begins with S, 8 boys whose last name begins with T, 4 girls whose last name begins with S, and 11 girls whose last name begins with T. A student is chosen at random from the class. What is the probability that the student is a girl or has a last name that begins with S?
    1. 18 29 18 over 29
    2. 21 29 21 over 29
    3. 23 29 23 over 29
    4. 25 29 25 over 29

Short Response

33. In a library, the probability that a book is a hardback, given that it is illustrated, is 0.40. The probability that a book is hardback and illustrated is 0.20. Find the probability that a book is illustrated.

Mixed Review

See Lesson11-4.

Of all the respondents to a survey, 59% are girls. Of the girls, 61% read horror stories. Of the boys, 49% read horror stories. Find each probability.

34. P(boy and reads horror stories)
35. P (reads horror stories)

See Lesson 9-2.

Determine whether each sequence is arithmetic. If it is, identify the common difference.

36. 16 , 7 , − 2 , … 16 comma 7 comma negative 2 comma dot dot dot
37. 34, 51, 68, …
38. 2, 2.2, 2.22, …
39. 1, 1, 1, …

Get Ready! To prepare for Lesson 11-6, do Exercises 40–43.

See Lesson 6-1.

Find all real square roots of each number.

40. 256
41. 0.0081
42. 121 16 121 over 16
43. 361 25 361 over 25

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