3 years ago

Giving brainlest please help xoxo stay safe and healthy

2 answers:

defon3 years ago

3 0

She had a 20% increase.
40*0.20=8
40+8=48
You’re welcome and I hope you stay safe.

3 0

20% increase!!!!! :)

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bagirrra123 [75]

Answer:

Step-by-step explanation:

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3 years ago

Alika [10]

Answer: The value of test statistic is -0.052.

Step-by-step explanation:

Since we have given that

n = 677

and

$\bar {p}=0.499$

Claim that Most of the adults erase all of their personal details online.

p = 0.5

q = 1-0.5 = 0.5

So, the test statistic would be

$z=\dfrac{\bar{p}-p}{\sqrt{\dfrac{pq}{n}}}\\\\z=\dfrac{0.499-0.5}{\sqrt{\dfrac{0.5\times 0.5}{677}}}\\\\z=\dfrac{-0.001}{0.0192}\\\\z=-0.052$

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3 years ago

DaniilM [7]

-- Subtract K from each side of the equation.

8/5 = 0

-- There is no value for K that can make this a true statement. So the original equation has no solution.

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3 years ago

mariarad [96]

Hope you find this answer I need points

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3 years ago

rjkz [21]

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3 years ago