Math 2nd Semester Review

Expressions

100

What is 5⁴ written as a product of the same factor?

5x5x5x5

200

3²+5

14

300

What is the value of ab if a=2 and b=3

6

400

Simplify 2x+5+4x

6x+5

500

Simplify 5(x+3)

5x+15

Equations

100

x+3=25

22

200

x/2=6

x=12

300

x-4.5=2.7

x=7.2

400

1/5x=2/3

10/3 or 3 1/3

500

4.25+x=12

7.75

Inequalities

100

Graph x>4

open on 4 shaded right

200

Graph x<7

open on 7 shaded left

300

Write an inequality

You must be at least 18 to get your CDL

x greater than or equal to 18

400

Write an inequality

You must be less than 12 to order off of the kid's menu

x<12

500

You can have no more than 2 cookies

x less than or equal to 2

Measures of Center

100

Find the mean

2, 3, 3, 5, 8, 8, 9

5.4

200

Find the median

2, 3, 3, 5, 8, 8, 9

5

300

Find the mode

2, 3, 3, 5, 8, 8, 9

3 and 8

400

Find the median

1, 2, 3, 4, 5, 6

3.5

500

Which measure is affected the most by an outlier?

mean

Measures of Variation

100

Find the range

2, 3, 3, 5, 8, 8, 9

7

200

Find the IQR

2, 3, 3, 5, 8, 8, 9

5

300

Find the 1st Quartile

12, 12, 13, 14, 17, 18

12

400

Values lower than______ or higher than _______ would be outlier for this data.

52, 75, 78, 85, 92

26, 126

500

Find the IQR

1, 2, 3, 4, 5, 6

3