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kupik [55]
4 years ago
5

If y = -12 when x = -9, find y when x = -4

Mathematics
1 answer:
mihalych1998 [28]4 years ago
7 0
-12/-9=y/-4
cross multiply

-9y=48
divide by 9 on each side 

y= -5.33
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6 0
3 years ago
What is the domain of the relation? {x| x = –4 , 0, 1, 2}. {x| x = –7, –6, 2, 3, 11}. {y| y = –4, 0, 1, 2}. {y| y = –7, –6, 2, 3
Katarina [22]

The domain of the relation can be expressed as: B. {x{x=-7, -6, 2, 11, 3}.

<h3>What is the Domain of a Relation?</h3>

The domain of a relation can be defined as all possible set of x-values or inputs that correspond to the respective y-values or outputs of the relation. The set of y-values or output, on the other hand, make the range of the relation.

In the relation given in the image above, the domain values are the inputs (x-values) while the range values are the outputs (y-values).

The set of x-values that make up the inputs in the given relation are: -7, -6, 2, 11, and 3.

We can state that -7, -6, 2, 11, and 3 are the domain of the relation, while the range of the relation include: 0, 1, -4, and 2.

Therefore, the domain of the relation can be expressed as: B. {x{x=-7, -6, 2, 11, 3}.

Learn more about the domain of a relation on:

brainly.com/question/2272412

#SPJ1

6 0
2 years ago
Why does 3 x -4= 12 and not -12
vazorg [7]

Answer:

if you have -3×-4=12

Step-by-step explanation:

the reason is that anytime you multiply numbers with negative signs you get a positive value.

In order for you to get a positive number, both numbers you are multiplying must be negative.

But if one of the numbers you are multiplying is a negative and the other number positive then you have a negative value as your answer.

e.g. 3×-4=-12.

7 0
3 years ago
Simplify −5(x−8)+7(x+3)=x+11
4vir4ik [10]

Answer:

If you're solving for x, the answer is -50. x = -50

Step-by-step explanation:

Remove the parenthesis and distribute:

-5(x-8) + 7(x+3) = x + 11

-5x + 40* + 7(x+3) = x + 11

-5x + 40 +7x + 21* = x + 11

Collect like terms and calculate:

| -5x + 7x

2x + 40 + 21 = x + 11

| 40 + 21

2x + 61 = x + 11

Move them to the other side like so:

2x - x* + 61 = 11

| -61

2x - x = 11 - 61

Combine:

x = 11 - 61

x = -50

6 0
3 years ago
Factor by grouping.(7m + 2)(3m + 5) (7m – 2)(3m – 5) (7m – 2)(3m + 5) (7m + 2)(3m – 5)
Aneli [31]

Answer:

40m

Step-by-step explanation:

(7m+<u>2</u>+3m+<u>5</u>+7m-<u>2</u>+3m-<u>5</u>+7m-<u>2</u>+3m+<u>5</u>+7m+<u>2</u>+3m-<u>5</u>)

40m+0

40m

5 0
3 years ago
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