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vivado [14]
2 years ago
11

The student council at Eleanor Roosevelt High School is taking a survey of student opinions on this year's homecoming theme. To

decide who to survey, the council creates a master alphabetized list of names from every student in the school, then selects every 20th student from the list. Will the results of this survey be valid? Why or why not?
yes, because a random sample is taken from all of the student body

yes, because the survey will include all of the seniors

no, because the survey will include freshman

no, because the survey will not include members of the faculty
Mathematics
2 answers:
9966 [12]2 years ago
8 0
No because the survey will not include Keebler’s of faculty
xeze [42]2 years ago
5 0

Answer:

i  dont think so because it wont work effictianly

Step-by-step explanation:

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Solve the quadratic equation by completing the square.<br> x^2+2x-2=0
astraxan [27]

The solution to the quadratic equation by completing the square is x = -1 + √3, x = -1 - √3

<h3>What is a quadratic equation?</h3>

Any equation of the form \rm ax^2+bx+c=0  where x is variable and a, b, and c are any real numbers where a ≠ 0 is called a quadratic equation.

As we know, the formula for the roots of the quadratic equation is given by:

\rm x = \dfrac{-b \pm\sqrt{b^2-4ac}}{2a}

We have a quadratic equation:

x² + 2x - 2 = 0

x² + 2x + 1 - 1 - 2 = 0

(x + 1)² - 3 = 0

(x + 1)² = 3

x + 1 = ± √3

x = -1 ± √3

Thus, the solution to the quadratic equation by completing the square is x = -1 + √3, x = -1 - √3

Learn more about quadratic equations here:

brainly.com/question/2263981


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5 0
2 years ago
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tresset_1 [31]

Answer:

3,750

Step-by-step explanation:

4 0
2 years ago
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3 years ago
I only have 5 minutes to answer please help!!
dezoksy [38]

Answer:

The answer is D

Step-by-step explanation:

4.8 times 0.5 equals 2.4+ 1.2 = 3.6 which is the total number of miles he ran/walked

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Anthony is looking to build a rectangular
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