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Tju [1.3M]
3 years ago
13

Which of the following expressions represents a function?

Mathematics
1 answer:
PSYCHO15rus [73]3 years ago
7 0
A function can have one x-value for each y-value Or even, two difference x-values for one y-value.

And out of the four options, only A and C represent a function. The other two options have the same x value for two y-values.

One way to test if it is a function is by the vertical line test.
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Brandon has a playlist with 83 hip-hop and pop songs. There are 15 more hip-hop songs than pop songs. How many pop songs are on
kogti [31]

Using a system of equations, it is found that there are 34 pop songs are on the playlist.

<h3>What is a system of equations?</h3>

A system of equations is when two or more variables are related, and equations are built to find the values of each variable.

In this problem, the variables are:

  • Variable x: Number of hip-hop songs.
  • Variable y: Number of pop songs.

Brandon has a playlist with 83 hip-hop and pop songs, hence:

x + y = 83.

There are 15 more hip-hop songs than pop songs, hence:

x = 15 + y.

Replacing the second onto the first equation:

x + y = 83.

15 + y + y = 83.

2y = 68.

y = 34.

There are 34 pop songs are on the playlist.

More can be learned about a system of equations at brainly.com/question/24342899

6 0
2 years ago
How do you write 91% as a decimal?
vlada-n [284]

the answer is .91 because you have to move the decimal two places to the left
3 0
3 years ago
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Which number produces an irrational number when added to 5/8?
givi [52]
Choice D will create an irrational number when added. This is because a rational number plus a rational number will always be irrational (you can experiment this by trying to add rational numbers to pi). For example, 3 + pi = 6.1415926..... or 1+ \frac{2}{7} =1.285714....

:)
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Since the expression (x-4)^2+(y+1)^2 evaluated at (3,6) is
stiks02 [169]

\bf (x-4)^2+(y+1)^2\qquad (3,6)~~ \begin{cases} x = 3\\ y = 6 \end{cases}\implies (3-4)^2+(6+1)^2 \\\\\\ (-1)^2+7^2\implies 1+49\implies 50

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7 1/2- 3 7/10 or Seven and a half subtract three and seven tenths.
Korolek [52]

Answer:

3.8 is the answer to your problem. Happy Holidays!

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