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Get Ready for Statistics: Corequisites
Definitions, Order of Operations, Simplifying Expressions, and Sets

 

Problem  1
practice icon

Write each of the following in symbols:

The sum of x and 5 is less than 2.
The product of 3 and x is 21.
The quotient of y and 6 is 4.
Twice the difference of b and 7 is greater than 5.
The difference of twice b and 7 is greater than 5.

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Mr. McKeague cc
Mr. McKeague
Betsy cc
Betsy
Gordon cc
Gordon
Cynthia espanol spanish
Cynthia
Problem  2
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Expand and multiply: 52

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Preston
Preston
Katrina
Katrina
Aaron
Aaron
Cynthia espanol spanish
Cynthia
Problem  3
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Expand and multiply: 25

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Preston
Preston
Katrina
Katrina
Aaron
Aaron
Cynthia espanol spanish
Cynthia
Problem  4
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Expand and multiply: 43

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Preston
Preston
Katrina
Katrina
Aaron
Aaron
Cynthia espanol spanish
Cynthia
Problem  5
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Simplify: 5+3(2+4)

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Aaron cc
Aaron
Lauren
Lauren
Anthony espanol spanish
Anthony
Problem  6
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Simplify: 523432

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Aaron
Aaron
Lauren
Lauren
Julieta espanol spanish
Julieta
Problem  7
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Simplify: 20(25230)

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Katrina
Katrina
Brooke cc
Brooke
Anthony espanol spanish
Anthony
Problem  8
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Simplify: 4020÷5+8

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Katrina cc
Katrina
Brooke cc
Brooke
Logan cc
Logan
Anthony espanol spanish
Anthony
Problem  9
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Simplify the expression 72685

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Mr. McKeague cc
Mr. McKeague
Suhas
Suhas
Julieta espanol spanish
Julieta
Julieta espanol spanish
Julieta
Problem  10
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Evaluate the expression 23.6+16.3+18.971

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Mr. McKeague cc
Mr. McKeague
Suhas
Suhas
Julieta
Julieta
Julieta espanol spanish
Julieta
Problem  11
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Evaluate a2+8a+16 when a is 0,1,2,3, and 4

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Suhas
Suhas
Aaron
Aaron
Mr. Martinez espanol spanish
Mr. Martinez
Problem  12
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Evaluate x¯xs if x=186, ¯x=135.8, and s=35.2.

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Mr. McKeague cc
Mr. McKeague
Suhas
Suhas
Julieta
Julieta
Julieta espanol spanish
Julieta
Problem  13
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Evaluate s2n for the given values of the variables.

  1. s=12 and n=10

  2. s=4.3 and n=100

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Mr. McKeague cc
Mr. McKeague
Suhas
Suhas
Julieta
Julieta
Julieta espanol spanish
Julieta
Problem  14

If A={all college students in the US} and B={all college students in Boston}, then which of the following is true?

  1. AB

  2. BA

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Mr. McKeague cc
Mr. McKeague
Suhas
Suhas
Problem  15
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Let A={1,3,5}, B={0,2,4}, and C={1,2,3,}. Find AB.

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Suhas
Suhas
Katrina cc
Katrina
Logan cc
Logan
Mr. Martinez espanol spanish
Mr. Martinez
Problem  16
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Let A={1,3,5}, B={0,2,4}, and C={1,2,3,}. Find AB.

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Mr. Perez
Mr. Perez
Katrina cc
Katrina
Logan cc
Logan
Julieta cc espanol spanish
Julieta
Problem  17
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Let A={1,3,5}, B={0,2,4}, and C={1,2,3,}. Find AC.

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Mr. Perez
Mr. Perez
Katrina cc
Katrina
Logan cc
Logan
Mr. Martinez espanol spanish
Mr. Martinez
Problem  18
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Let A={1,3,5}, B={0,2,4}, and C={1,2,3,}. Find BC.

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Mr. Perez
Mr. Perez
Katrina cc
Katrina
Logan cc
Logan
Julieta cc espanol spanish
Julieta
Problem  19
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If A={1,2,3,4,5,6}, find C={xxA and x4}.

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Katrina
Katrina
Mr. Martinez espanol spanish
Mr. Martinez
welcome

Welcome from Mr. McKeague.

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Mr. McKeague cc
Mr. McKeague
Problem  21
practice icon

Write each of the following in symbols:

The sum of x and 5 is less than 2.
The product of 3 and x is 21.
The quotient of y and 6 is 4.
Twice the difference of b and 7 is greater than 5.
The difference of twice b and 7 is greater than 5.

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Mr. McKeague cc
Mr. McKeague
Betsy cc
Betsy
Gordon cc
Gordon
Cynthia espanol spanish
Cynthia
Problem  22
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Simplify: 5+3(2+4)

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Aaron cc
Aaron
Lauren
Lauren
Anthony espanol spanish
Anthony
Problem  23
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Simplify: 4020÷5+8

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Katrina cc
Katrina
Brooke cc
Brooke
Logan cc
Logan
Anthony espanol spanish
Anthony
Problem  24
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Simplify (23)(59)

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Preston cc
Preston
Stefanie cc
Stefanie
Anthony espanol spanish
Anthony
Problem  25
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Simplify 25(74)6

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Preston cc
Preston
Stefanie cc
Stefanie
Winston cc
Winston
Julieta espanol spanish
Julieta
Problem  26
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Simplify 2(47)3+(23)2

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Preston cc
Preston
Stefanie cc
Stefanie
Anthony espanol spanish
Anthony
Problem  27
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Simplify: 8853

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Mr. McKeague cc
Mr. McKeague
Matt cc
Matt
Anthony cc
Anthony
Problem  28
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Simplify: 5(4)+2(3)2(1)5

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Mr. McKeague cc
Mr. McKeague
Anthony cc
Anthony
Anthony espanol spanish
Anthony
Problem  29
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Find the value of the expression 3x+4y+5 when x is 6 and y is 7

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Aaron cc
Aaron
Mr. Martinez espanol spanish
Mr. Martinez
Problem  30

Locate the numbers 4.5, 0.75, 12, 2, π, and 4.1 on the real number line.

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Mr. Perez
Mr. Perez
Katrina cc
Katrina
Logan cc
Logan
Mr. Martinez espanol spanish
Mr. Martinez
Problem  31
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Write |5| without absolute value symbols.

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Aaron cc
Aaron
Mr. Martinez espanol spanish
Mr. Martinez
Problem  32
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Write |2| without absolute value symbols

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Aaron cc
Aaron
Cynthia espanol spanish
Cynthia
Problem  33
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Write |3| without absolute value symbols

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Aaron cc
Aaron
Cynthia espanol spanish
Cynthia
Problem  34
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Simplify 5(4x) by using the associative property.

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Betsy cc
Betsy
Logan cc
Logan
Cynthia espanol spanish
Cynthia
Problem  35
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Simplify 14(4a) by using the associative property.

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Betsy cc
Betsy
Logan cc
Logan
Mr. Martinez espanol spanish
Mr. Martinez
Problem  36
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Apply the distributive property to 12(3x+6) and then simplify the result.

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Julieta cc
Julieta
Betsy cc
Betsy
Logan cc
Logan
Julieta cc espanol spanish
Julieta
Problem  37
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Simplify: 2(3y+4)+2

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Betsy cc
Betsy
Logan cc
Logan
Mr. Martinez espanol spanish
Mr. Martinez
Problem  38
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Apply the distributive property to a(1+1a) and then simplify the result.

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Betsy cc
Betsy
Logan cc
Logan
Cynthia espanol spanish
Cynthia
Problem  39
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Apply the distributive property to 3(13x+5) and then simplify the result.

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Betsy cc
Betsy
Logan cc
Logan
Mr. Martinez espanol spanish
Mr. Martinez
Problem  40
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Apply the distributive property to 6(13x+12y) and then simplify the result.

Choose instructor to watch:
Betsy cc
Betsy
Logan cc
Logan
Cynthia espanol spanish
Cynthia
Problem  41
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Use the distributive property to combine similar terms for the expression 3x+5x.

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Betsy cc
Betsy
Logan cc
Logan
Mr. Martinez espanol spanish
Mr. Martinez
Problem  42
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Use the distributive property to combine similar terms for the expression 3y+y

Choose instructor to watch:
Betsy cc
Betsy
Logan cc
Logan
Cynthia espanol spanish
Cynthia
Problem  43
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Simplify: 7x+4+6x+3

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Stefanie cc
Stefanie
Katrina cc
Katrina
Logan cc
Logan
Julieta cc espanol spanish
Julieta
Problem  44
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Simplify: 4+3(2y+5)+8y

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Stefanie cc
Stefanie
Katrina cc
Katrina
Cynthia espanol spanish
Cynthia
Mr. Martinez espanol spanish
Mr. Martinez
Problem  45
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Simplify: 3(2y1)+y

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Stefanie cc
Stefanie
Katrina cc
Katrina
Anthony espanol spanish
Anthony
Problem  46
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Simplify: 83(4x2)+5x

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Mr. McKeague cc
Mr. McKeague
Stefanie cc
Stefanie
Anthony cc
Anthony
David espanol spanish
David
Problem  47
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Simplify: 5(2a+3)(6a4)

Choose instructor to watch:
Stefanie cc
Stefanie
Katrina cc
Katrina
Anthony espanol spanish
Anthony
Problem  48
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Let A={1,3,5}, B={0,2,4}, and C={1,2,3,}. Find AB.

Choose instructor to watch:
Suhas
Suhas
Katrina cc
Katrina
Logan cc
Logan
Mr. Martinez espanol spanish
Mr. Martinez
Problem  49
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Let A={1,3,5}, B={0,2,4}, and C={1,2,3,}. Find AB.

Choose instructor to watch:
Mr. Perez
Mr. Perez
Katrina cc
Katrina
Logan cc
Logan
Julieta cc espanol spanish
Julieta
Problem  50
practice icon

Let A={1,3,5}, B={0,2,4}, and C={1,2,3,}. Find AC.

Choose instructor to watch:
Mr. Perez
Mr. Perez
Katrina cc
Katrina
Logan cc
Logan
Mr. Martinez espanol spanish
Mr. Martinez
Problem  51
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Let A={1,3,5}, B={0,2,4}, and C={1,2,3,}. Find BC.

Choose instructor to watch:
Mr. Perez
Mr. Perez
Katrina cc
Katrina
Logan cc
Logan
Julieta cc espanol spanish
Julieta
Problem  52
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For the set {5,3.5,0,34,3,5,9}, list:

  1. whole numbers

  2. integers

  3. rational numbers

  4. irrational numbers

  5. real numbers

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Mr. Perez
Mr. Perez
Katrina cc
Katrina
Mr. Martinez espanol spanish
Mr. Martinez