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3 years ago

Kevin uses each of the digits 6,4,3 and 8 once and only once to make four-digit numbers

Mathematics

1 answer:

Ivanshal [37]3 years ago

6 0

Answer:

3,468?

Step-by-step explanation:

I think the prompt is a little confusing, but I went with the logic of literally using the numbers and combining them.

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Consider the figure shown. what is the measure of the given angles?

Mars2501 [29]

Step-by-step explanation:

180°=46° +2x=> 2x=134°=>x=67°

x+y=180°=>y=180° -x=>y= 180°-67°=>y=113°

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3 years ago

How many whole numbers between 99 and 999 contain the digit '1'?

Sedbober [7]

Answer:

162

Step-by-step explanation:

The number with "1" digit starts with 101 then 110 and so on.

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3 years ago

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PLEASE HELP DUE IN 3 minutes

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Answer:

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Step-by-step explanation:

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3 years ago

An article claims that 12% of trees are infested by a bark beetle. A random sample of 1,000 trees were tested for traces of the

inna [77]

Answer: 0.6812

Step-by-step explanation:

Let p be the population proportion of trees are infested by a bark beetle.

As per given: p= 12%= 0.12

Sample size : n= 1000

Number of trees affected in sample = 1000

Sample proportion of trees are infested by a bark beetle. = $\hat{p}=\dfrac{127}{1000}=0.127$

Now, the z-test statistic : $z=\dfrac{\hat{p}-p}{\sqrt{\dfrac{p(1-p)}{n}}}$

So, $z=\dfrac{0.127-0.12}{\sqrt{\dfrac{0.12\times 0.88}{1000}}}$

$z=\dfrac{0.007}{\sqrt{\dfrac{0.1056}{1000}}}\\\\\\=\dfrac{0.007}{\sqrt{0.0001056}}\\\\\\=\dfrac{0.007}{0.010276}\approx0.6812$

Hence, the value of the z-test statistic = 0.6812 .

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4 years ago

Underline the ones that are the same. 5, 5, .50

KATRIN_1 [288]

Answer:

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Step-by-step explanation:

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3 years ago

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