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Art [367]
2 years ago
6

Evaluate this expression for x=-5 and y=-5​

Mathematics
1 answer:
Talja [164]2 years ago
3 0

Answer:

x - 2y=5

Step-by-step explanation:

Given

x = -5; y=-5

x - 2y --- missing from question

Required

Evaluate

We have:

x - 2y

Substitute for x and y

x - 2y=-5 - 2*-5

x - 2y=-5 +10

x - 2y=5

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Answer: ($3.532, $4.166)

Step-by-step explanation:

Given : Significance level : \alpha: 1-0.90=0.10

Critical value : z_{\alpha/2}=1.645

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Hence, the 0% confidence interval for the average tip given at this restaurant = ($3.532, $4.166)

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2 years ago
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