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iren2701 [21]
3 years ago
13

Please help me!!!You will get 20 points...

Mathematics
1 answer:
pashok25 [27]3 years ago
4 0

Use the rule of 3, note that we will convert the hours to minutes:

60 - 84
75 - x

(75 * 84) / 60 = x
6,300 / 60 = x
105 = x

105 minutes = 1h 45m


Hope it helped,

Happy homework/ study/ exam!

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c or e

Step-by-step explanation:

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1 year ago
Test the claim that the proportion of people who own cats is significantly different than 80% at the 0.2 significance level. The
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Answer:

C. H0 : p = 0.8 H 1 : p ≠ 0.8

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The p-value is:_____. 0.09887

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Step-by-step explanation:

We formulate null and alternative hypotheses as  proportion of people who own cats is significantly different than 80%.

H0 : p = 0.8 H 1 : p ≠ 0.8

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For a two tailed test for significance level = 0.2 we have critical value  ± 1.28.

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8 0
3 years ago
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x=6

Step-by-step explanation:

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3x+x+30=10+2x+5x+2

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4x+30=10+7x+2

Group like terms:

4x+30=7x+10+2

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4 0
2 years ago
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a_sh-v [17]

Step-by-step explanation:

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