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Svetradugi [14.3K]
3 years ago
14

Let f(x) = x2 - 81. Find f-1(x).

Mathematics
1 answer:
dusya [7]3 years ago
7 0
This is equivalent to finding a function g in which g(x^2-81)=x.

We simply reverse the actions of the initial function by adding 81 back and taking the square root.  Therefore, f^{-1}(x)=\sqrt{x+81}.
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BabaBlast [244]

Answer:

25t+95 or 5(5t + 19)

Step-by-step explanation:

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5 0
3 years ago
What is the length of the segment connecting the points A(1,3) and B(6,5)?
Natalija [7]

Answer:

The answer is

<h2>\sqrt{29}  \:  \:  \: or \:  \:  \:5.38 \:  \:  \: units</h2>

Step-by-step explanation:

The length of the segment connecting two points can be found by using the formula

d =  \sqrt{ ({x1 - x2})^{2} +  ({y1 - y2})^{2}  }  \\

where

(x1 , y1) and (x2 , y2) are the points

From the question the points are

A(1,3) and B(6,5)

The length is

|AB|  =  \sqrt{ ({1 - 6})^{2} +  ({3 - 5})^{2}  }  \\  =  \sqrt{ ({ - 5})^{2}  + ( { - 2})^{2} }  \\  =  \sqrt{25 + 4}  \\  =  \sqrt{29}

We have the final answer as

\sqrt{29}  \:  \:  \: or \:  \:  \:5.38 \:  \:  \: units

Hope this helps you

3 0
2 years ago
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Sveta_85 [38]

Answer:

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large span of time in few words. Base the details of the story on factual evidence and

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free body diagram can be used to help work out the net force acting on an object. True or, false?Columbian exchange. Tell a story in chronological order of the changes that the community undergoes as it and the communities around it make contact with Europeans over a span of roughly 50 to 100 years.

This section is worth 20 points. See the scoring rubric for more details on how you

will be graded

Use the evidence you gathered to tell the story of a hypothetical indigenous

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decades so that you can cover each of the important topics related to the activity: the

availability of goods, the effects of disease, and the impact of European culture

(language and religion, for example), at the very least.

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free body diagram can be used to help work out the net force acting on an object. True or, false?

Step-by-step explanation:

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8 0
2 years ago
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Total coverage = 0.85 x 185,000 = $157,250

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7 0
3 years ago
5x + 2 y = 7<br> 4x + y = 8
dsp73
4y.
Is the answer
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