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goldenfox [79]
3 years ago
11

Use the graph representing bacteria decay two estimate the domain of the function and sulfur the average rate of change across t

he domain.

Mathematics
1 answer:
gregori [183]3 years ago
3 0
<h3>Answer: Choice C</h3>

\text{Domain}: 0 \le x \le 55 and \text{Average rate of change over domain} = -1.45 (average rate of change is approximate)

=========================================================

The domain is the set of allowed x inputs of the function. The smallest x value shown is x = 0, which is from the point (0,80). The largest x value possible is x = 55 from the point (55,0)

The domain is the set of all values between 0 and 55, including both endpoints. Therefore, we get a domain of 0 \le x \le 55

Compute the slope of the line through (0,80) and (55,0) to find the average rate of change over the entire function domain.

m = (y2 - y1)/(x2 - x1)

m = (0 - 80)/(55 - 0)

m = -80/55

m = -1.45 approximately

The slope of the line through (0,80) and (55,0) is approximately -1.45, which is also the average rate of change over the entire domain.

Side note: the negative slope or negative rate of change indicates we are going downhill ultimately as we move from left to right.

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<h3>What is a quadratic equation?</h3>

Any equation of the form \rm ax^2+bx+c=0 where x is variable and a, b, and c are any real numbers where a ≠ 0 is called a quadratic equation.

As we know, the formula for the roots of the quadratic equation is given by:

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We have an equation:

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By distributive property:

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Plugging all the values in the formula:

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After calculating:

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Learn more about quadratic equations here:

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Step-by-step explanation:

A probability is the number of desired outcomes divided by the number of total outcomes.

Since the order is not important, the combinations formula is used to solve this question.

Combinations formula:

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