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ELEN [110]
3 years ago
10

Evaluate piecewise functions

Mathematics
1 answer:
Vika [28.1K]3 years ago
5 0

Answer:

F(4) = 9

Step-by-step explanation:

Notice that for f(4), we need to use the function definition for the partitioned Domain that includes x = 4, and that is the expression :

f(x) = x^2-7

Therefore:

f(4) = 4^2-7 = 16-7 =9

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Inga [223]

The type of graph I would use for a set of categorical data with 25 people surveyed is bar graph.

<h3>Which types of graphs are good for categorical data?</h3>

The type of graph or chart that is good for showing  categorical data are:

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Note that bar graph is one of the  the most appropriate graphical form of displays for any categorical variables.

Learn more about bar graph from

brainly.com/question/24741444

6 0
2 years ago
I need the answers to these question (with steps)
coldgirl [10]

Answer:

-5^ -1 = 1/(-5) = -1/5

-1/y^(-4) = -(1/(1/y^4)) = -y^4

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Hope this helps!

:)

4 0
3 years ago
Read 2 more answers
Express the radical using the imaginary unit i
valentinak56 [21]

Answer:

=\pm i\sqrt{66}

Step-by-step explanation:

So we have:

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This is the same as:

=\pm\sqrt{66\cdot-1}

Separate:

=\pm\sqrt{66}\cdot\sqrt{-1}

Replace the second term with i:

=\pm i\sqrt{66}

The square root of 66 cannot be simplified.

So, this is our answer :)

7 0
3 years ago
Discuss the differences between statistics as numerical facts and statistics as a discipline or field of study.
garik1379 [7]

Answer:

Statistics as numerical facts involves the use of numbers from a sample in determining the mean, media, mode, variance etc of the given sample of numbers. It is useful in giving more information about an Economic state.

Statistics as a discipline or field of study is the art of the usage of these data in the interpretation and analysis of the different data available.

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