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Rom4ik [11]
4 years ago
6

The change in water vapor in a cloud is modeled by a polynomial function, C(x). Describe how to find the x-intercepts of C(x) an

d how to construct a rough graph of C(x) so that the meteorologist can predict when there will be no change in the water vapor. You may create a sample polynomial of degree 3 or higher to use in your explanations. PLEASE HELP
Mathematics
1 answer:
djverab [1.8K]4 years ago
8 0
Let the model for the change in water vapor be
<span>y=<span>x3</span>−8<span>x2</span>+15x</span>to find the x intercepts we can factor this expression
<span><span>x3</span>−8<span>x2</span>+15x=x(x−3)(x−5)</span>
<span>the x intercepts are 0, 3, 5</span>
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garik1379 [7]
The answer is b). (0,0)
8 0
3 years ago
I need help!!
Natasha2012 [34]

Answer:

The exact solution is

x = \frac{Ln(60)}{7*Ln(5)}

And the approximation to three decimal places is:

x = 0.363

Step-by-step explanation:

Here we have the equation:

5^{7*x} = 60\\

Now we can remember a property of the natural logarithm function:

Ln(a^n) = n*Ln(a)

Now we can apply the Ln( ) function to both sides of that equation to get:

Ln(5^{7*x}) = Ln(60)

Then we get:

7*x*Ln(5) = Ln(60)

Solving that for x we get:

x = \frac{Ln(60)}{7*Ln(5)}  = 0.363

So the exact solution is:

x = \frac{Ln(60)}{7*Ln(5)}

And the approximation to three decimal places is:

x = 0.363

7 0
3 years ago
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Answer:

(-6, 0)

Step-by-step explanation:

(x, y) over y=x = (y, x)

so (0, -6) will be (-6, 0).

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