Answer:
The probability is
Step-by-step explanation:
From the question we are told that
The proportion analyzed by Amir is P(A) = 0.55
The proportion analyzed by Betty is P(B) = 0.30
The proportion analyzed by Carlos is P(C) = 0.15
The inaccuracy by Amir is p = 0.6% = 0.006
The inaccuracy by Betty is b = 0.4% = 0.004
The inaccuracy by Carlos is c = 0.1% = 0.001
Generally the probability of inaccurate analysis is mathematically represented as

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=> 
Generally the probability that an inaccurate analysis, detected at final verification, was conducted by Carlos is mathematically represented as

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Answer:
A.
Step-by-step explanation:
A buffer must contain a weak acid and its conjugate base. There are several ways a solution containing these two components can be made: Buffers can be made from weak acids or base and their salts. ... Buffers can be made from two salts that provide a conjugate acid-base pair.
Answer:
I Believe The Answer Is
Z(2xy-3y+4x)
Step-by-step explanation:
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
A) a+b
1.6+2.3=3.9 which is not equal to 4
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>