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2 years ago

Find the value of x

Mathematics

2 answers:

Mumz [18]2 years ago

8 0

Answer:

147

Step-by-step explanation:

In a triangle, the 3 angles all add up to 180 to get x you must add 10 and 23 which you will get 33. Lastly, you must subtract 180-33 which gets your answer of 147, hope this helped!

Advocard [28]2 years ago

7 0

Answer:

x=147

Step-by-step explanation:

I did the math also hope this helps^w^

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The owner of a local nightclub has recently surveyed a random sample of n = 250 customers of the club. She would now like to det

Maru [420]

Answer:

0.077994

Step-by-step explanation:

Given that the owner of a local nightclub has recently surveyed a random sample of n = 250 customers of the club.

$H_0: Mean = 30\\H_a: Mean >30$

(Right tailed test)

Sample size = $n=250$

Sample mean = 30.45

Mean difference = $30.45-30=0.45\\$

Sample std dev s = 5

Sample std error = $\frac{5}{\sqrt{n} } =\frac{5}{\sqrt{250} } \\=0.3163$

Test statistic = Mean diff/std error = $=\frac{0.45}{0.3163} =1.423$

Since population std deviation is not know we use t test

p value = $0.077994$

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3 years ago

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4 years ago

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Step-by-step explanation:

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xxTIMURxx [149]

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Step-by-step explanation:

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