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olganol [36]
3 years ago
11

15. (3x + 6) - (3x - 6)

Mathematics
2 answers:
coldgirl [10]3 years ago
6 0

Answer:

12

Step-by-step explanation:

Distribute the negative which would get your 3x + 6 -3x + 6. The 3x would cancel out and you would add 6+6 = 12

Black_prince [1.1K]3 years ago
3 0

Answer:

12

Step-by-step explanation:

1. Write the problem.

(3x+6)-(3x-6)

2. Put a 1 after the subtraction/negative sign because there is technically a 1 after the subtraction/negative sign between the two phrases.

= (3x+6)-1(3x-6)

3. Distribute the -1 to the 2nd part.

= (3x+6) + (-3x+6)

4. Simplify the equation.

= 3x+6-3x+6

5. Find like terms.

= 3x<u>+6</u>-3x<u>+6</u>

The 3x and -3x cancel each other out, leaving <u>6+6</u>.

So, the answer is 12.

Hope this helps you understand a little more!!

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8. Let f(x) = 3x + 2 and g(x) = x - 3. Find f(x) - g(x) and state its domain.
Dvinal [7]
F(x) - g(x)
becomes
(3x + 2) - (x - 3)

which is
3x + 2 - x + 3

then add like terms
2x + 5

so f(x) - g(x) = 2x + 5
and it's domain should be all real numbers
7 0
3 years ago
What equation represents the proportional relationship displayed in the table?
KATRIN_1 [288]

Answer:

y=6x

Step-by-step explanation:

Given:

The table is given as:

x   0    4       7       8

y   0    24    42     48

The relationship between 'x' and 'y' is a proportional relationship.

A proportional relationship is one in which one variable varies directly with the other by a factor of 'k' also known as constant of proportionality and k\ne 0

A proportional relationship is given as:

y=kx

Now, we plug in 'x' and 'y' values and find the value of 'k'.

Let x=4\ and\ y=24

24=k\times 4\\\\k=\frac{24}{4}=6

Therefore, the constant of proportionality is 6. Hence the complete equation is given as:

y=6x

3 0
3 years ago
Counted a total of 40 white cars and yellow cars there were 9 times as many as white cars as yellow cars. how many white cars di
Law Incorporation [45]
Let W = number of white cars, and Y = number of yellow cars.
There were 9 times as many white cars as yellow cars. This means that the number of white cars was 9 times more than the number of yellow cars. This can be translated by the expression:
9Y = W
The person counted  40 cars in total:
W + Y = 40

So we get the system:
\left \{ {{W+Y=40} \atop {9Y=W}} \right.

In the first equation, we multiply by 9:
9W + 9Y = 360
In the second equation:
9Y= W
W-9Y = 0

Then we add the first with the second equation:
9W + 9Y + W - 9Y = 360
10 W = 360
W = 36

So He counted 36 white cars.

Hope this Helps! :)

8 0
3 years ago
In each diagram, ∆ABC has been transformed to yield ∆A'B'C'. Which transformation could NOT be achieved by rotation alone?
Cloud [144]

Answer:

Graph D

Step-by-step explanation:

4 0
3 years ago
What is the volume of the rectangular prism below? *
horsena [70]

Answer:

Step-by-step explanation:

184 in *2

6 0
3 years ago
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