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olganol [36]
3 years ago
8

Which of the x values are solutions to the inequality 4(2 – x) > –2x – 3(4x + 1)? Check all that apply. x = –1.1 x = –2.2 x =

0 x = –10 x = 10
Mathematics
2 answers:
galben [10]3 years ago
8 0
Answer:
x > - 11/10
(I don't know if this is correct or not, if so i'm glad i helped!)
ch4aika [34]3 years ago
7 0

4(2 - x) > -2x - 3(4x + 1)

8 - 4x > -2x - 12x - 3

-4x + 2x + 12x > -3 - 8

10x > -11

x > -11/10

x > -1.1

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Solve for x and then find the measure of B
pogonyaev

Answer:

x=6

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Step-by-step explanation:

8x+78 = 2x+114

8x-2x = 114-78

6x=36

x=6

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b=2x6+114

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3 0
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Apple launches an ad campaign for iPhone 12. Managers want to know what is the % of social media mentions that have positive rea
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Answer:

social media mentions do managers at Apple need to collect, if they want to get a margin of error of 2%

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Step-by-step explanation:

<u><em>Step(i)</em></u>:-

Given data Apple launches an ad campaign for iPhone 12

Managers want to know what is the % of social media mentions that have positive reactions to the new ad campaign

probability of positive reactions p = 1/2

Probability of negative reactions q = 1-p = 1/2

we know that \sqrt{p(1-p}\leq \frac{1}{2}

<u><em>Step(ii):</em></u>-

Given margin of error  = 2 % =0.02

The margin of error is determined by

          M.E = \frac{\sqrt{p(1-p} }{\sqrt{n} }

         0.02 = \frac{\frac{1}{2}  }{\sqrt{n} }

        \sqrt{n} =\frac{1}{2 X0.02}

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squaring on both sides, we get

       n = 625

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Answer:

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<em> </em><em> </em>

<em>1</em><em>5</em><em> </em><em>+</em><em> </em><em>2</em>

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