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zvonat [6]
1 year ago
6

For each relation, decide whether or not it is a function.

Mathematics
2 answers:
Sveta_85 [38]1 year ago
7 0
Relation 1 is function. Relation 2 is function. Relation 3 is function. Relation 4 is not a function.
tatyana61 [14]1 year ago
5 0

Relation 1: FUNCTION

Relation 2: NOT a function

Relation 3: FUNCTION

Relation 4: NOT a function

Relation 2 is not because if you are asked, "What is the output for 3?", there are two answers: 4 and 9.

To be a function, there can only be a single answer to that question.

Relation 4 is not because if you are asked, "What is the output for -2?", there are three answers: v, a and u.

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The sum of two numbers is 12. 3 times the first number decreased by the second number is 24. Find the numbers.
lana [24]

Answer:

9 and 3

Step-by-step explanation:

Let the first number be x and second number be y hence their sum

x+y=12 ......(1)

Making x the subject theb x=12-y

Three times be first number is 3x

3x-y=24.......(2)

Adding the two sets of equations then

4x=36

X=36/4=9

The second number will be 12-9=3

So the first number is 9 and second is 3

6 0
4 years ago
Help pleaseee
Artemon [7]

Answer:

that's it brainliest me

6 0
3 years ago
15000(1.07)^7 round to the nearest whole number
Anettt [7]
I think it’s 3, i input it all into my calculator. i’m not sure about the exponent tho so probably 3^29

3 0
3 years ago
In the diagram below which ratio is equal to sin R
stiks02 [169]

Answer:

\huge\boxed{Option \ 4}

Step-by-step explanation:

\displaystyle sin \theta = \frac{opposite }{hypotenuse}

Where opposite = 55, hypotenuse = 73

\displaystyle sin R = \frac{55}{73} \\\\\rule[225]{225}{2}

Hope this helped!

<h3>~AH1807</h3>
6 0
3 years ago
The distance between two locations, A and B is calculated using a third location C at a distance of 15 miles from
Rufina [12.5K]
<h3>Answer:  approximately 6.3 miles</h3>

=================================================

Explanation:

See the diagram below. The two given angles B = 105 and C = 20 are used to help find angle A

A+B+C = 180

A+105+20 = 180

A+125 = 180

A = 180-125

A = 55

Then we use the law of sines to find the side length c

sin(A)/a = sin(C)/c

sin(55)/15 = sin(20)/c

c*sin(55) = 15*sin(20) ... cross multiply

c = 15*sin(20)/sin(55)  .... divided both sides by sin(55)

c = 6.26294249724791 .... value is approximate

c = 6.3 ....... rounding to one decimal place

5 0
3 years ago
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