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Semenov [28]
4 years ago
10

What formular for surface area of hemisphere

Mathematics
1 answer:
Romashka [77]4 years ago
3 0

Well the formula for the surface area of a sphere is 4 x pi x r^2. Which means that the surface area for a hemisphere is half of that. The surface area of a hemisphere is 2 x pi x r^2

Hope this helps!

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Leno4ka [110]
I’m not sure but if it’s LCM it’s 60 if it’s GCF it’s 1
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Based on the tree diagram below what is the probability that the test for lice returns a false positive
Neporo4naja [7]

Answer:

0.0492

Step-by-step explanation:

Based on the tree diagram we need to tell the the probability that the test for lice returns a false positive. False positive means that the student has no lice but still the test shows a positive result.

So for this we have to first look for the branch, from the starting node, which shows that student has no lice. From the starting point, the upper branch represents the students that have lice and lower branch represents the students who have no lice. So, we will consider the lower branch with probability mentioned as 0.82

Now, the lower branch is divided into two branches further. We have to look for the branch which shows positive test result. This would be the upper branch with probability mentioned as 0.06.

The overall probability of this event is mentioned at the end of the branch which is 0.0492

This is the probability of the combined event: Student has no lice but tests shows positive result which is the False positive.

Thus, the probability that the test for lice returns a false positive is 0.0492

4 0
3 years ago
Y = 1/2x + 6<br> Y = -2x + 3<br> Y= 1/2x + 3<br> Y= -1/2x + 3
TEA [102]

Answer:

y=-1/2x+3

Step-by-step explanation:

it has a negative slope and it's not that steep which is why the slope isnt 2. also the first one is wrong because the y-intercept is 3

7 0
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Someone pls help me with this question
Citrus2011 [14]

Answer:

5 inch

Step-by-step explanation:

its b

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The top option, "meat lovers", received 12 votes. Was this majority of the votes? ​
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Answer:

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if the number of votes is 25, 12 is not majority

but if the number is 23 then 12 is majority

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