Answer:
18-3y.
Step-by-step explanation:
3 x 6 = 18
3 x -1y= -3y.
Answer: A (10)
Step-by-step explanation:
Answer: bacteria 2
Step-by-step explanation:
Since the growth rates are modeled as : Bacteria 1: y = 4x
And Bacteria 2: y = 4x2
Where y represents the number of bacteria colonies and x represents the number of hours.
Let's plug in for the two models
By assuming x = 2 and x = 3
If x = 2
Bacteria 1 will be y = 8 and bacteria 2 will be y = 16
Based on these models, bacteria 2 is growing faster than bacteria 1 because the growth is exponential
The critical values of the function are x = 0 and x = 64
The critical values of a function f(x) are the values of x for which f'(x) = 0.
Given,
f(x) = 
The derivative is found as follows, applying the quotient rule:
f'(x) = ![\frac{[5(x^{4} )(x-8)^{2}-5x^{4} [(x-8)^{2} ]' }{[5(x-8)^{2} ]^{2} }](https://tex.z-dn.net/?f=%5Cfrac%7B%5B5%28x%5E%7B4%7D%20%29%28x-8%29%5E%7B2%7D-5x%5E%7B4%7D%20%5B%28x-8%29%5E%7B2%7D%20%5D%27%20%7D%7B%5B5%28x-8%29%5E%7B2%7D%20%5D%5E%7B2%7D%20%20%7D)
= 
The zeros of the function are the zeros of the numerator, thus:

x - 64 = 0------------->x = 64
The critical values are x = 0 and x = 64
Learn more about critical values here:brainly.com/question/12958088
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