Test Bank, Answer at the end of each Chapter

COLLEGE ALGEBRA

EIGHTH EDITION

COLLEGE ALGEBRA

ESSENTIALS

SIXTH EDITION

Robert Blitzer ( , Answer at the end of each Chapter) (For Complete File, Download link at the end this File)

NOTE: 1 / 4

BlitzerCollege Algebra 8e Chapter 0 Test Item File MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question.Evaluate the algebraic expression for the given value or values of the variable(s).1)8x+ 6;x=5

A)14B)46C)80D)34

Objective:(1) Evaluate Algebraic Expressions

2)5x+ 6;x=-2

A)-4B)-16C)16D)4

Objective:(1) Evaluate Algebraic Expressions

3)2(x+4)+ 19;x=-11

A)5B)-17C)55D)-5

Objective:(1) Evaluate Algebraic Expressions

4)3x 2 +4y; x=9 and y =7

A)1,785B)271C)183D)757

Objective:(1) Evaluate Algebraic Expressions

5)(x+ 4y)2;x=3 and y =3

A)15B)49C)30D)225

Objective:(1) Evaluate Algebraic Expressions

6)6+6(x-7) 3 ;x=9

A)96B)54C)-42D)18

Objective:(1) Evaluate Algebraic Expressions

7)x 2 -3(x- y); x=6 and y =4

A)-42B)14C)22D)30

Objective:(1) Evaluate Algebraic Expressions

8) 9(x+ 5) 2x+4 ;x=7

A)6B)12C)1D)

17 2

Objective:(1) Evaluate Algebraic Expressions

9) y-7x 2x+ xy ;x=-3 and y =4 A)- 4 3 B)- 17 6 C)- 25 18 D) 17 18

Objective:(1) Evaluate Algebraic Expressions

1 2 / 4

Solve.10)The formula C = 5 9 (F- 32) expresses the relationship between Fahrenheit temperature, F, and Celsius temperature, C. Use the formula to convert 59°F to its equivalent temperature on the Celsius scale.

A)51°CB)15°CC)3°CD)49°C

Objective:(2) Use Mathematical Models

11)A stone is dropped from a tower that is 810 feet high. The formula h=810- 16t 2 describes the stone's height above the ground, h, in feet, t seconds after it was dropped. What is the stone's height 3 seconds after it is released?A)676 ftB)666 ftC)641 ftD)691 ft

Objective:(2) Use Mathematical Models

12)If a rock falls from a height of 80 meters above the ground, the height H (in meters) after x seconds can be approximated using the formula H=80- 4.9x 2 . What is the height of the rock after 2 seconds?A)-16.04 mB)70.2 mC)60.4 mD)300.4 m

Objective:(2) Use Mathematical Models

13)As the relative humidity increases, the temperature seems higher than it is. The formula T =0.118x+59.63 approximates the apparent temperature for an temperature of 65°F, where x is the relative humidity. What is the apparent temperature (to the nearest degree) for a relative humidity of 50%?

A)60°FB)66°FC)110°FD)352°F

Objective:(2) Use Mathematical Models

14)The winning times (in seconds) in a speed-skating event for men can be represented by the formula T=46.96-0.096x, where x represents the year, with x = 0 corresponding to 1920. (For example in 1992, x would be 1992- 1920 = 72.) According to the formula, what was the winning time in 1999? Round to the nearest hundredth.A)39.38 secB)41.30 secC)40.34 secD)3,702.26 sec

Objective:(2) Use Mathematical Models

15)It is estimated that y, the number of items of a particular commodity (in millions) sold in the United States in year x, where x represents the number of years since 1990, is given by the formula y=1.29x+4.37. That is, x= 0 represents 1990, x= 1 represents 1991, and so on. According to the formula, how many items sold in 1999?A)4.37 millions B)50.94 millions C)17.27 millions D)15.98 millions

Objective:(2) Use Mathematical Models

Find the intersection of the two sets.

16){2,7,5,8} {5,6,2}

A){2}B){2,5}C){2,5,8,7,6} D)

Objective:(3) Find the Intersection of Two Sets

17){2,7,8} {5,11}

A){2,8}B){7,8}C)D){2,5,8,7,11}

Objective:(3) Find the Intersection of Two Sets

18){4,6,7,9}

A) {4,6,7,9} B){7,9}C)D) {4,6}

Objective:(3) Find the Intersection of Two Sets

2 3 / 4

Find the union of the two sets.

19){1,4,9,11} {1,4,12}

A){1,4}B){1,4,9,11,12} C)D){9,11,12}

Objective:(4) Find the Union of Two Sets

20){2,10}{2,5,9}

A){5,9,10}B)C){2}D){2,5,9,10}

Objective:(4) Find the Union of Two Sets

21){1,3,4,6}

A) {1,3}B)C) {1,3,4,6} D) {4,6}

Objective:(4) Find the Union of Two Sets

List all numbers from the given set B that are members of the given Real Number subset.22)B= {11, 6,-21, 0, 0.6, 4} Integers

A)11, 0B)11,-21, 0, 4 C)11,-21, 0 D)11, 0, 4

Objective:(5) Recognize Subsets of the Real Numbers

23)B= {14, 5,-16, 0, 0.2, 25} Whole numbers

A)14,-16, 0B)14,-16, 0, 25 C)14, 0D)14, 0, 25

Objective:(5) Recognize Subsets of the Real Numbers

24)B= {13, 8,-20, 0, 0.4, 25} Natural numbers

A)13, 25B)13, 0C)13, 0, 25D)13

Objective:(5) Recognize Subsets of the Real Numbers

25)B= {10, 6,-8, 0,

4 5 , 25, 0.9, 0.86} Rational numbers

A)10, 0, 25B)6, 25

C)10,-8, 0,

4 5

, 25, 0.86, 0.9D)6,

4 5

, 0.86

Objective:(5) Recognize Subsets of the Real Numbers

26)B= {6, 6,-12, 0,

2 3 , 16, 0.5, 0.34} Irrational numbers

A)6, 16, 0.5 B)6, 16, 0.34 C)6, 0.5D)6

Objective:(5) Recognize Subsets of the Real Numbers

27)B= {19, 7, 0,

6 7 ,4,-0.5, 0.94,-5} Real numbers

A)19, 7, 0,

6 7

, 4, 0.94B)19, 7,

6 7

,4,-0.5, 0.94,-5

C)19, 7, 0,

6 7

,4,-0.5, 0.94,-5D)19, 0,

6 7

,-0.5, 0.94,-5

Objective:(5) Recognize Subsets of the Real Numbers

• / 4