Page 768 - Basic College Mathematics with Early Integers

744 PRACTICE FINAL EXAM

41. A professor measures the heights of the students in her class.The results are shown in the
following histogram. Use this histogram to answer Exercise 41.

Student Heights
42. 10 8
Number of Students 6

43. 4 2

44. 5'0"– 5'3" 5'4"– 5'7" 5'8"– 5'11" 6'0"– 6'3"
Heights

41. How many students are 5¿7– or shorter?

45.
3x - 5
42. Evaluate: when x = 7 and 43. Multiply, then simplify:
2y
y =-8 5(3z + 2) - z - 18
46.
Solve.

5
44. - x =-25 45. 5x + 12 - 4x - 14 = 22
8
47.
46. 3x - 5 =-11 47. In a 10-kilometer race, there are 112
more men entered than women. Find
the number of women runners if the
48. total number of runners in the race
is 600.

48. Find the complement of a 78° angle. 49. Find the measures of angles x, y, and z.
49.
x
y 62
z

50. 50. Find the measure of ∠x . 51. Given that the following triangles are
similar, find the missing length n.

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51. 5
62 x
12 n