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sergiy2304 [10]
4 years ago
9

Which of the following expressions represents a function?

Mathematics
1 answer:
Ugo [173]4 years ago
4 0
The first one is a function because their is only 1 y-value for every x-value.
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How do I do this and what is the correct answer?
mariarad [96]
B=3

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8 0
3 years ago
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Use the graph to determine the domain and range of the relation, and whether the relation is a function.
Westkost [7]

Answer:

A

Step-by-step explanation:

We can use vertical line test to determine if a relation is a function.

<em>If a vertical line passes the graph at any point only once, then the relation is a function, if there is even 1 line that passes the graph at 2 points, then it is NOT a function.</em>

<em />

The domain is the set of allowed x-values of the function. The range is the set of allowed y-values of the function.

  • Looking at the graph, we see that there are a lot of vertical lines that cuts the graph two times. Suppose x=3, x=4, x= 5 etc. So it is not a function.
  • As for domain, we see that curve swings from x = -8 to x = 8, so the domain is from -8 to 8.
  • As for range, we that the curve stretches all the way from negative infinity to positive infinity, so the range is the set of all real numbers.

Correct answer is A

5 0
3 years ago
A soccer ball has an interior
AnnZ [28]

Answer:

5575 cm³

Step-by-step explanation:

The volume of a sphere is V = (4/3)πr³.  If we substitute r = (d/2 where r is the radius and d the diameter), this formula becomes:

                                        πd³

V = (4/3)π·d³/8, or V = -------------

                                           6

and so, if d = 22 cm, the volume is:

        π(22 cm)³

V = ------------------- = 5575 cm³

              6

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3 years ago
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Colt1911 [192]
Rational. This simplifies to 1.1

Irrational numbers <span>Cannot Be Written as a Fraction.</span>
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Quarter of 8 I don't have a clue how to do it
Anit [1.1K]
A quarter is 4 pieces.
So its 8÷4=2
Hence, a quarter of 8 is 2.
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3 years ago
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