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Bond [772]
3 years ago
5

Which relation is a function?

Mathematics
1 answer:
Step2247 [10]3 years ago
4 0
{(2, 3), (1, 5), (2, 7)} - NOT because 2->3 and 2->7
{(11, 9), (11, 5), (9, 3)} - NOT because 11->9 and 11->5
{(3, 8), (0, 8), (3, -2)} - NOT because 3->8 and 3->-2

{(-1, 5), (-2, 6), (-3, 7)} - YES
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Write an expression to represent: Four less than the quotient of a number x and 5.
antoniya [11.8K]

Answer:

\frac{x}{5} - 4

Step-by-step explanation:

You are dividing x by 5 and then subtracting 4.

5 0
3 years ago
Read 2 more answers
You are playing the slot machine. There are 3 wheels and each wheel has a picture of 7 different fruit (lemon, plum, apple, oran
S_A_V [24]
Here are the outcomes. You could also a tree diagram for this:

There are 49 outcomes for this problem. Therefore, 7/49 possible probability that 2 could be orange. To check if i'm correct, use a tree diagram or a compound principle.
8 0
4 years ago
On Tuesday Donovan earned $9 for 2 hours of babysitting on Saturday he babysat for the same family and earned 31.50 how may hour
VMariaS [17]

Hi there! :)

<u>Answer:</u>

Donovan babysat for 7 hours on Saturday in order to earn $31.50.


Step-by-step explanation:

In order for you to answer your question, you'll need to use the cross product method:

$9         → 2 hours

$31.50  → X hours

<u>(2 × 31.50)</u> ÷ 9 = X hours

<u>63 ÷ 9</u> = X hours

<u>7 = X hours</u>


There you go! I really hope this helped, if there's anything just let me know! :)

7 0
3 years ago
Read 2 more answers
Susan tips at the rate of 75% to 5 waiters. How many waiters will she be tpping, if she can afford a $90 tip?
Anna35 [415]
Many typos.
The answer to your question is 6.
75/5=15
90/15=6
7 0
3 years ago
yo I need help asap would really appreciate, solve photo attached please also pls tell me how you did it
lilavasa [31]

Answer:

The average rate of change is 4.

Step-by-step explanation:

Average rate of change is simply a fancy way of saying "find the slope".  

So for slope, we use (y2-y1)/(x2-x1).

(3-(-13))/(2-(-2))

16/4

4

5 0
3 years ago
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