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shepuryov [24]
3 years ago
11

Name the polygon. Write whether it is regular or not regular.

Mathematics
1 answer:
andrew-mc [135]3 years ago
8 0

Answer:

since the polygon has eight sides, it's an octagon and no, it's not regular since length of all sides of a regular polygon must be equal but in that octagon, not all sides are equal.

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Find the probability of having 2,3, or 4 successes in five trials of a binomial experiment in which the probability of success i
DiKsa [7]

0.45033504848

Explanation:

The binomial formula is given by
<span>nCk⋅<span>ρk</span><span><span>(1−ρ)</span><span>n−k</span></span></span> thus the result for x would be

<span>p<span>(x=2)</span>=<span>(<span><span>5!</span><span><span>(5−2!)</span>2!</span></span>)</span><span><span>(.4)</span>2</span><span><span>(1−.4)</span><span>5−2</span></span>=0.3456</span>

<span>p<span>(x=3)</span>=<span>(<span><span>5!</span><span><span>(5−3!)</span>3!</span></span>)</span><span><span>(.4)</span>3</span><span><span>(1−.4)</span><span>5−3</span></span>=0.13824</span>

<span>p<span>(x=4)</span>=<span>(<span><span>5!</span><span><span>(5−4!)</span>4!</span></span>)</span><span><span>(.4)</span>4</span><span><span>(1−.4)</span><span>5−4</span></span>=0.027648</span>

<span><span>p<span>(a∪b∪c)</span>=p<span>(a)</span>+p<span>(b)</span>+p<span>(c)</span>−p<span>(a)</span>⋅p<span>(b)</span>−p<span>(a)</span>⋅p<span>(c)</span>−p<span>(b)</span>⋅p<span>(c)</span></span><span>=.3456+.13824+.027648−.047775744−.0095551488−0.00382205952</span></span>

<span>p<span>(a∪b∪c)</span>=<span>0.45033504848</span></span>

6 0
3 years ago
A survey asked people if they were aware that maintaining a healthy weight could reduce the risk of stroke. A 97% confidence int
Natalija [7]

Answer:

97% confidence interval for the survey is between a lower limit of 0.45 and an upper limit of 0.67

Step-by-step explanation:

Confidence Interval is given by the mean + or - error margin

The lower limit of the confidence interval is found by subtracting the error margin from the mean.

The upper limit is obtained by adding the error margin to the mean.

The interpretation is that the mean is between 0.45 and 0.67

5 0
3 years ago
Write the decimals in order from least to greatest. 0.403, 0.034, 0.340
nata0808 [166]

Answer:

0.034, 0.340, 0.403

hope this helped. :)

7 0
2 years ago
Read 2 more answers
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Answer:

it is -5

Step-by-step explanation:

3 0
3 years ago
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Is it adjacent,vertical or neither
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I think its adjacent not for sure

3 0
3 years ago
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