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blsea [12.9K]
3 years ago
5

As more and more people get their news online, the subscriptions to the Dorchester Daily has declined over the past years.

Mathematics
1 answer:
atroni [7]3 years ago
3 0

Answer:

Step-by-step explanation:

The function s(x)=0.9(.82)^x models the number of subscription in tens of thousands where x represents the number of years since the trend has been observed.

s(x) represents the number of subscriptions to the Dorchester Daily in a given year.

0.9 in ten thousands represents the initial number of subscriptions to the Dorchester Daily in a given year.

0.82 represents the rate at which the number of number of subscriptions to the Dorchester Daily is declining. The rate in percentage is 100 - 82 = 12% each year.

x represents the number of years since the trend has been observed.

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drug sniffing dogs must be 95% accurate in their responses because their handlers don't want them to miss durgs and also don't w
GenaCL600 [577]

Answer:

95% Confidence interval:  (0.8449,0.9951)

Step-by-step explanation:

We are given the following in the question:

Sample size, n = 50

Number of times the dog is right, x = 46

\hat{p} = \dfrac{x}{n} = \dfrac{46}{50} = 0.92

95% Confidence interval:

\hat{p}\pm z_{stat}\sqrt{\dfrac{\hat{p}(1-\hat{p})}{n}}

z_{critical}\text{ at}~\alpha_{0.05} = 1.96

Putting the values, we get:

0.92 \pm 1.96(\sqrt{\dfrac{0.92(1-0.92)}{50}})\\\\ = 0.92\pm 0.0751\\\\=(0.8449,0.9951)

(0.8449,0.9951) is the required 95% confidence interval for the proportion of times the dog will be correct.

7 0
2 years ago
Help me I don’t know the answer
Vika [28.1K]

Answer:

It is C and D :)

Step-by-step explanation:

Each input is multiplied by 2 to get the output which is why it is C. The coordinates are just the input as the X value and the output as the Y value, which is why it is also D.

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3 0
2 years ago
One of the great mysteries of the world is my hotdogs and hotdog buns come in packages of different sizes hotdogs come in packs
V125BC [204]

Answer:

3 pack of hot dogs and 2 pack of buns 24

Step-by-step explanation:

hot dogs come in packs of 8

burns came in packs of 12

what is the least number of each you can buy in order to have a equal number of hot dogs and buns

so to get equal number

we have to look for the LCM of 8 and 12 = 24

therefore the packs will be equal to product

hot dogs come in packs of 8 = 8*3 = 24

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7 0
3 years ago
Item 3 Drivers between the ages of 18 and 64 in different countries were asked if they had driven while talking on their cell ph
makkiz [27]

Answer:

The answer is "50%".

Step-by-step explanation:

Please find the complete question in the attached file.

In the given question when we deduct the 'yes' from the 'yes' on the L graph also on the given R graph, it might be presumed that about \frac{1}{2} of its circle on the L still exists, which is equal to \frac{1}{2} or 50%.

5 0
2 years ago
NEED HELP QUICK
jeka94

Answer:

9

Step-by-step explanation:

She bet 9 each time, you can find this by doing 27 ÷ 3 :)

4 0
2 years ago
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