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shepuryov [24]
2 years ago
9

X/19 < -7 Inqualities

Mathematics
1 answer:
Hitman42 [59]2 years ago
6 0

Because 19 is being divided, you have to do the opposite. What's the opposite of division? Multiplication. So multiply 19 to -7, then get rid of the 19 on the x's side(cuz it was cancelled out). Now you should have x<-133. In case you don't know, positive times negative equals negative, but negative times negative equals positive.

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hope it helps

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Four families went out for lunch. The total food
dybincka [34]

Answer:

Each family spent about 34.25 on dinner

Step-by-step explanation:

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137 ÷  4 (for each family) = 34.25

BUT

if each family is seperate than they each spent about 11.75 on dinner

167 - (30 x 4) = 47

47 ÷  4 = 11.75

I'm pretty sure the first one is the answer though

7 0
3 years ago
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svetoff [14.1K]

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Step-by-step explanation:

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2 years ago
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ohaa [14]

Answer:

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Part B

Confidence interval is written as sample mean ± margin of error

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For the null hypothesis,

H0: µ = 2.3

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This is a right tailed test

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Since n = 6

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t = (x - µ)/(s/√n)

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µ = population mean = 2.3

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We would determine the p value using the t test calculator. It becomes

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Assuming significance level, alpha = 0.05.

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Step-by-step explanation:

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