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3 years ago

The equation of the graphed line is x+2y=5 What is the x intercept of the graph?

Mathematics

1 answer:

Alexxandr [17]3 years ago

5 0

Answer:

X-intercept is 5

Step-by-step explanation:

find the x-intercept let y=0

x+2(0)=5

x+0=5

x=5

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In a certain city of several million people, 7.7% of the adults are unemployed. If a random sample of 300 adults in this city is

Lilit [14]

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Step-by-step explanation:

Given : The proportion of adults are unemployed : p=0.077

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By suing normal approximation to the binomial , we have

$\mu=np=300\times0.077=23.1$

$\sigma=\sqrt{np(1-p)}=\sqrt{300\times0.077(1-0.077)}\\\\=4.61749932323\approx4.62$

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Using standard distribution table for z , we have

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Hence, the probability that at least 26 in the sample are unemployed =0.2643

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Step-by-step explanation:

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