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tino4ka555 [31]
3 years ago
6

Factor completely 5 x^{2} -80

Mathematics
1 answer:
lutik1710 [3]3 years ago
7 0
Remember
a^2-b^2=(a-b)(a+b)
5(x^2-16)
5(x^2-4^2)
5(x-4)(x+4)
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The mayor of a town has proposed a plan for the annexation of an adjoining bridge. A political study took a sample of 1500 voter
Nadusha1986 [10]

Answer:

p-value of the statistics = 0.0096

Step-by-step explanation:

Given - The mayor of a town has proposed a plan for the annexation of an adjoining bridge. A political study took a sample of 1500 voters in the town and found that 47% of the residents favored annexation. Using the data, a political strategist wants to test the claim that the percentage of residents who favor annexation is above 44%.

To find - Determine the P-value of the test statistic.

Proof -

Given that,

H0 : p = 0.44

Ha : p > 0.44

Now,

Test Statistics is

z = (p bar - p)/ sqrt(p(1-p)/n)

  = (0.47 - 0.44) / sqrt(0.44(1-0.44)/1500)

  = 2.34

⇒z = 2.34

So,

p-value = P(Z > z)

             = P(Z > 2.34)

             = 0.0096

⇒p-value = 0.0096

7 0
3 years ago
Cabs use a valuable commodity—gas! Research average gas prices from 2005–
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Answer:

a

Step-by-step explanation:


6 0
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VashaNatasha [74]

Answer:

No

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y=7x

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4 0
4 years ago
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