Which of the following graphs represents the equation below?
1 answer:
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Answer: 0.0475
Step-by-step explanation:
Let x = random variable that represents the number of a particular type of bacteria in samples of 1 milliliter (ml) of drinking water, such that X is normally distributed.
Given:
The probability that a given 1-ml will contain more than 100 bacteria will be:
∴The probability that a given 1-ml will contain more than 100 bacteria
0.0475.
Answer :
Given expression is
To make perfect square trinominal we use completing the square method
In completing the square method we add and subtract the half of square of coefficient of middle term
Here coefficient of middle term is -7
Half of -7 is
Square of is
=
So the expression becomes that gives perfect square trinomial
Hence , the value of 'c' is