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goldfiish [28.3K]
3 years ago
7

Which sum is prime? A) 1 + 3 B) 2 + 4 C) 5 +8 D) 7+9

Advanced Placement (AP)
1 answer:
puteri [66]3 years ago
4 0

Answer:

C

Explanation:

In other option ,the result comes out to be even

in option A, its 4

in option B,its 6

in option C,its 13

in option D,its 16

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I can tell you it is almost certainly not "concentrates". Concentrates are usually made of high-energy, low-fiber cereal grains, like oats, corn, soybeans, etc.

Dry Roughage might be the answer just because according to http://modernfarmer.com/2014/12/turnips/, turnips are a diarrhetic for cows. So, they should be mixed with high-fiber feeds in order for the cow to more effectively use of the nutrients in turnips. However, the question asked specifically which feed INCLUDES root vegetables. So, I don't think that dry roughage can possibly be the answer. Dry roughage are high in fiber, low in energy, and usually around 10-15% moisture. Dry Roughages include things like hay, husks, and straw.  

Green Roughages is comprised usually contain high moisture content ranging from around 50-90%. I looked it up, turnips are slightly above that range; their moisture content resting at about 91-92%.  However other root vegetables did lie in range. Carrots having 88% moistuire, potatos 79%,  beet roots 87%, etc. So, I think you could make a case base on the moisture content of root vegetables that they would be found in green roughage. 

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I think dry matter can't be the answer because I believe it is just a measurement of how much dry matter is contained in a particular feed such as, silages, concentrates, and roughages. For example, this feed mixture is 885 dry matter feed.
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