MAT 650 Chapter 2 Review

Integers

100

What is the additive inverse of 32?

-32

200

What is the definition of an integer?

a positive or negative whole number

300

What is |-14|?

14

400

Why is the absolute value of a number ALWAYS positive?

Absolute value is a number's distance from zero, and distance is always positive.

500

In the game of golf, the person with the lowest score wins.  Anna scored -29, Billy scored -22, Cathy scored -14, and Donna scored -19.  By how much did the second place player win over the third place player?

Billy beat Donna by three points

Integer Operations

100

-6 + -5

-11

200

-18 - 35

-53

300

-17(6)

-102

400

-7 + 5(-6)

-37

500

Bailey withdrew $559 from her checking account.  The current balance is -$462.  How much was the balance before her withdrawal?

$97

Integer Equations

100

Solve the equation:

x - 19 = -72

x = -53

200

Solve the equation: 

-8x = -296

x = 37

300

Solve the equation:

^x /_-59 = 84

x = -4956

400

Solve the equation: 

b - 15 + 42 = -27 - (-14)

b = -40

500

In their volleyball tournament, Cam's team had six games.  In the first five games, his team won by four, lost by seven, won by twelve, lost by eight, and lost by six.  Altogether in the six games, Cam's won by 4 points.  What was the result of their final game?

Won by 9

Rational Numbers

100

Write the fraction ³⁹/₅₀ as a decimal in simplest form.

0.78

200

Write the decimal 0.006 as a fraction in simplest form.

³/₅₀₀

300

Write the fraction - 25/9 as a fraction.

-2.7 (repeating 7)

400

Robert has read nine of the 38 chapters.  What portion of the textbook has he read? (round your answer to the nearest thousandth)

0.237

(0.236 rounds to 0.237)

500

Emma's English teacher is letting her retake her vocab quizzes to raise her grade.  Which quiz should she retake?

Quiz A: 17/21

Quiz B: 22/26

Quiz C: 13/16

Quiz A: 0.80952

Quiz B: 0.84615

Quiz C: 0.8125

She should retake Quiz A

Grab Bag

100

What word means "someone who is against war or the use of violence"?

pacifist

200

Mesopotamia was located between which two rivers?

Tigris and Euphrates rivers

300

What are two words that contain all of the vowels in alphabetical order?

abstemious 

facetious

400

What are the eight groups (in order) used for classifying organisms?

Domain, Kingdom, Phylum, Class, Order, Family, Genus, Species

500

Convert the fraction ³⁹/₆₃ into a decimal.

0.619047 (all repeated)