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noname [10]
3 years ago
5

Which method used to determine numbers of bacteria in a sample involves the preparation of a series of dilutions of the sample i

n sterile water, adding measured volumes of each dilution to melted nutrient agar plates, making pour plates, incubating, counting colonies, and multiplying colony counts by dilution factors to determine the number of bacteria in the sample
Mathematics
1 answer:
Jlenok [28]3 years ago
6 0

Answer:To obtain a readily counted and statistically accurate number of bacteria. When performing a standard plate count using the pour plate method, the dilutions are first made, and then measured aliquots of each dilution are cultured.

Step-by-step explanation:

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Answer:

According to the question z must be equal to 4. So value of a+b=z or a+b=4

Lets try each of the options

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So option a is not the asnwer.

B) a+b = 1.6+2.5= 4.1 which is not equal to 4

<em>C) a+b= 1.9+2.1= 4.00 which is equal to 4</em>

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D) a+b= 2.1+3.4= 5.5 which is not eqaul to 4

<u>Thus, we have OPTION C AS THE CORRECT ANSWER</u>

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fredd [130]

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Step-by-step explanation:

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-7p = -3p - 8<br> p =<br> Help
jeka94

Answer:

p=2

Step-by-step explanation:

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