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Any large random sample from a group of people will be representative of the entire group.
Any sample from a group of people will be representative of the entire group.
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Asked 6/6/2013 10:18:57 AM
Updated 51 days ago|5/28/2018 9:04:14 AM
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Any sample from a group of people will be representative of the entire group.
Added 51 days ago|5/28/2018 9:04:14 AM
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Solve x 4 - 11x 2 + 18 = 0.
Weegy: x=11 User: If P(x) = 2x 4 - x 2 + 3x - 1, use synthetic division to find P (2). Weegy: (3x-2) squared is 9x^2 - 12x + 4. User: 9x^2 - 12x + 4. User: Determine the rational roots of 2x 5 - 11x 4 + 14x 3 - 2x 2 + 12x + 9 = 0. 1/2 1 3/2 3 9/2 9 -1/2 -1 -3/2 -3 -9/2 -9 Weegy: Can you clarify the equation please? (More)
Question
Expert Answered
Updated 6/3/2014 10:55:36 PM
3 Answers/Comments
x^4 - 11x^2 + 18 = 0
(x^2 - 2)(x^2 - 9) = 0
(x + sqrt 2)(x - sqrt 2)(x + 3)(x - 3) = 0
x = - sqrt 2, x = sqrt 2, x = -3 or x = 3
Added 6/3/2014 10:51:13 PM
This answer has been confirmed as correct and helpful.
Confirmed by andrewpallarca [6/4/2014 12:58:58 PM]
P(x) = 2x^4 - x^2 + 3x - 1
P(2) = 2(2^4) - 2^2 + 3(2) - 1
= 2(16) - 4 + 6 - 1
= 32 - 4 + 6 - 1
= 28 + 6 - 1
= 34 - 1
= 33
Added 6/3/2014 10:54:15 PM
This answer has been confirmed as correct and helpful.
Confirmed by andrewpallarca [6/4/2014 12:59:28 PM]
9x^2 - 12x + 4 = (3x - 2)^2
Added 6/3/2014 10:55:36 PM
This answer has been confirmed as correct and helpful.
Confirmed by andrewpallarca [6/4/2014 1:00:03 PM]
What are Genetic drift?
Weegy: Genetic drift is the term used in population genetics to refer to the statistical drift over time of gene frequencies in a population due to random sampling effects in the formation of successive generations. (More)
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Updated 7/19/2014 10:25:11 PM
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Score: A TT genotype is said to be _____. homozygous heterozygous dihybrid
Weegy: A TT genotype is said to be HOMOZYGOUS. (More)
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Updated 1/23/2014 2:26:59 PM
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