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Romashka [77]
3 years ago
6

Expand the expression.​

Mathematics
2 answers:
Margarita [4]3 years ago
8 0

Answer:

-7k + 21

Step-by-step explanation:

-7(k - 3)

-7k + 21

alexandr1967 [171]3 years ago
5 0

Answer:

-7k+21

Step-by-step explanation:

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Find the value of X
Murljashka [212]

Answer:

x=8

Step-by-step explanation:

I am pretty sure that x equals 8 because as you can see, it wouldn't make any sense if the answer of x were to equal 7. 15-7=8 which contributes onto making the most sense!

8 0
3 years ago
Solve for y in the given equation 2y - 24 = 14y <br> Answer are <br><br> 8y <br> -8y<br> -2 <br> 2
ArbitrLikvidat [17]

Answer:

y = -2

Step-by-step explanation:

First, we subtract 2y on both sides:

-24 = 12y

Then, we divide 12 on both sides:

y = -2

And we're done ^^ hope this helps!

6 0
4 years ago
What is the equation of a line that is parallel to −3x+4y=4 and passes through the point (4, 0) ?
Degger [83]
First, change the given equation to slope-intercept form:

4y = 3x + 4
y = (3/4)x + 1

Because the line we are trying to write the equation for is parallel to the above line, the new line must have the same slope (3/4).

We can then substitute (4, 0) to find the y-intercept (b):

0 = (3/4) * 4 + b
0 = 3 + b
-3 = b

Our y-intercept is -3

We can now write the whole equation:

y = (3/4)x - 3

Your final answer is y = (3/4)x - 3

Hope this helps!! Let me know if you have ANY questions.
3 0
3 years ago
F(x) = x^3-2x<br> g(x) =3x-1<br> Find (f•g) (2)
amid [387]
The answer should be 115
8 0
3 years ago
A triangle has an area of 360 square feet. The height is 36 feet. What is the length of the base (in feet)?
garik1379 [7]

Step-by-step explanation:

Length of base = 20cm

We will take the base as "b"

Area of a triangle = 1/2 x base x height

So the total area = 360 square feet

360 square feet = 1/2 x b x 36

360 = 36b /2

360 = 18b

b = 360/18

b = 20

So, Length of base = 20 cm

Let's check:

1/2 x 20 x 36 = 360

Which is the correct area!

Hope this helps!

5 0
3 years ago
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