Factoring
Which signs do you use when factoring x^2 + 3x - 70?
Opposite signs
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What are the restrictions for the following equation?
x ≠ 6, x ≠ 8
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What is the LCD (least common denominator) for the following equation?
(x - 7) (x - 1)
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What is the value of the median?
64
Is the question biased or unbiased? Explain why.
What is your favorite song?
Unbiased - Fair and general
Which signs do you use when factoring x^2 - 17x + 70?
Both negative
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What are the restrictions for the following equation?
x ≠ -3, x ≠ 0
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What is the LCD (least common denominator) for the following equation?
(x - 4) (x - 5)
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What is the value of the IQR?
14
Is the question biased or unbiased? Explain why.
Which is your favorite movie, Finding Nemo or Monsters Inc.?
Biased - Does not allow for free response
Factor out the GCF: 7x -21
7 (x - 3)
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Simplify the following expression.
[ 5 (x - 3) ] / [ (x + 3) ]
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How would you solve this equation?
Cross-Multiply
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What is the most popular score?
500-550
EB Five Below wants to conduct a study to see which products customers want in the store. They ask 20 senior citizens who visit the store. What is the population?
EB Five Below customers
Factor the difference of squares: x^2 - 64
(x + 8) (x - 8)
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Simplify the following expression and state the restrictions.
[ 7 (x + 4) ] / [ 5 (x + 5) ]
x ≠ -5, x ≠ 0, x ≠ 5
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Solve the rational equation by cross-multiplying. State the restrictions. Check for extraneous solutions.
x = - 14
x ≠ 0, x ≠ 4
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The shape of the histogram would best be described as unimodal and ______________.
Skewed Right
EB Five Below wants to conduct a study to see which products customers want in the store. They ask 20 senior citizens who visit the store. What is the sample?
20 senior citizen customers at EB Five Below
Factor the trinomial: x^2 + 11x + 18
(x + 2) (x + 9)
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Simplify the following expression and state the restrictions.
[ 5 (x + 3) ] / [ 2 (x + 2) ]
x ≠ -2, x ≠ 0, x ≠ 2
Solve the rational equation by multiplying each numerator by the LCD. State the restrictions. Check for extraneous solutions.
No Solution
x ≠ 3
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How many people were included in this study?
26
EB Five Below wants to conduct a study to see which products customers want in the store. They ask 20 senior citizens who visit the store. Is the sample fair? Why or why not?
No, they only included senior citizens.