2 years ago

Which inequality is graphed on the grid?

Mathematics

1 answer:

malfutka [58]2 years ago

6 0

Answer: 2x+6y<9

Step-by-step explanation: it’s the correct answer

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Find the quotient of 1 1/4 and 3 1/2 express your answer in simplest form

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Answer:

11/14

Step-by-step explanation:

11/4 / 3 1/2

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3 years ago

In a study of computer use, 1000 randomly selected Canadian Internet users were asked how much time they spend using the Interne

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Answer:

b. Do not reject H0. We do not have convincing evidence that the mean weekly time spent using the Internet by Canadians is greater than 12.7 hours.

Step-by-step explanation:

Given that in a study of computer use, 1000 randomly selected Canadian Internet users were asked how much time they spend using the Internet in a typical week. The mean of the sample observations was 12.9 hours.

$H_0: \bar x =12.7\\H_a: \bar x >12,7$

(Right tailed test at 5% level)

Mean difference = 0.2

Std error = $\frac{6}{\sqrt{1000} } \\=0.1897$

Z statistic = 1.0540

p value = 0.145941

since p >alpha we do not reject H0.

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