All elements have certain wavelengths of visible light that they can absorb, and later emit. These emission spectra are unique for EVERY element. Since these spectra are unique for each element, identification of the elements can be made from those spectra.
A new alletrope of carbon was found (buckminsterfullerine or
) was discovered using this spectra of red stars.
D!!!!!!!!!!!!!!!!!!!!!!!!
<h3>Answer:</h3>
<h3>Explanation:</h3>
In each case the expected value is the sum of products of value and its probability. (This is the definition of expected value.)
a) 1·0.3 +2·0.45 +3·0.05 +4·0.1 +5·0.1 = 2.25
b) 0·0.05 +1·0.15 +2·0.35 +3·0.25 +4·0.15 +5·0.05 = 2.45
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<em>Comment on the picture</em>
It is usually convenient to let a machine do the arithmetic, especially when the lists are long.
Here, you may notice there are only 5 contributors to the total for the second question. The first contributor for that question would be 0·0.05 = 0, so adds nothing to the total. Leaving it out makes the table sizes match, so makes the two problems easier to work with this calculator.
Well the correct option is D. Community service helps you get into college. Remember please that Service- learning promotes critical thinking, or reflection. Students are being put into action and learning, instead of learning in a classroom and just memorizing and reciting information. Hope this helps a lot
Answer:
what language is this I can't read it
Explanation: