Test Bank, Answer at the end of each Chapter

Test Bank

COLLEGE ALGEBRA

EIGHTH EDITION

COLLEGE ALGEBRA

ESSENTIALS

SIXTH EDITION

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

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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

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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 actual 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

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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

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