Solve for w. 5w + 9z = 2z + 3w
2 answers:
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There are (A) 2.7 bacterias initially.
<h3>What is a function?</h3>- A function is an expression that establishes the relationship between the dependent and independent variables.
- A function from a set X to a set Y allocates exactly one element of Y to each element of X.
- The set X is known as the function's domain, while the set Y is known as the function's codomain.
- Originally, functions were the idealization of how a variable quantity depends on another quantity.
To find the number of bacteria:
- The graph shows that the function follows an exponential curve, and the starting point is at ( 0,2.7 ).
- The starting number of bacteria is then 2.7.
Therefore, there are (A) 2.7 bacterias initially.
Know more about functions here:
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The correct question is given below:
The growth of a strain of bacteria can be modeled by
the function graphed, where the x-values are the time
in seconds and the y-values are the number of
bacteria. How many bacteria are there initially?
(A) 2.7
(B) 2.8
(C) 4
<h2>The required 'option C) 144' is correct.</h2>
Step-by-step explanation:
We have,
To find, the possible value of x = ?
∴
⇒
Using the exponential identity,
⇒
⇒
⇒
Squaring both sides, we get
⇒
⇒ x = 144
∴ The possible value of x = 144
Thus, the required 'option C) 144' is correct.