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weeeeeb [17]
3 years ago
14

Alexandra has 78 emails in her inbox. She deletes 47 emails.How many emails are left in het inbox? Draw jumps and level the numb

er line to show your thinking.
Mathematics
2 answers:
devlian [24]3 years ago
7 0

Answer: There are 31 emails left in her inbox.

Step-by-step explanation:

Since we have given that

Number of emails in her inbox = 78

Number of emails she deleted = 47

We need to find the number of emails that are left in her inbox.

So, for left we would use "Subtraction operator"

So, Number of emails left in her inbox = Number of emails in her inbox - Number of emails she deleted.

=78-47\\\\=31

Hence, there are 31 emails left in her inbox.

ad-work [718]3 years ago
4 0

Answer:

31 emails, but I can't do a # number line.

Step-by-step explanation:

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Does the table represent a linear or nonlinear function? How do you know?<br> (PLS HELP ASAP)!
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Answer:

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Step-by-step explanation:

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klasskru [66]

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Part 1 state the domain and range of the given relation.
hram777 [196]
A relation is any set of ordered pairs, which can be thought of as (input, output).

A function is a relation in which NO two ordered pairs have the same first component and different second components.

The set of first components (x-coordinates) in the ordered pairs is the DOMAIN of the relation.

The set of second components (y-coordinates) is the RANGE of the relation.

Part 1:
Domain: {-1, 1, 3, 6}
Range: {2, 2, 2, 2}

Part 2:
To determine whether the given relation represents a function, look at the given relation and ask yourself, “Does every first element (or input) correspond with EXACTLY ONE second element (or output)?”

Remember that a function can only take on 1 output for each input.

It helps to plot the points on the graph and perform the Vertical Line Test (VLT):

The Vertical Line Test allows us to know whether or not a graph is actually a function. If a vertical line intersects the graph in all places at exactly one point, then the relation is a function.

As you can see in the attached screenshot, every vertical line drawn only has 1 point in it. This means that each x-value corresponds to exactly one y-value. The given relation passed the VLT. Therefore, the relation is a function.


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