(7 - 4n) x 6 = ? Help me answer the question

Mathematics

1 answer:

Aleksandr-060686 [28]3 years ago

6 0

7 x 6 - 4n x 6
42 - 4n x 6
42 - 24n

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Please help me ......................

jekas [21]

Answer:

n = 18

Step-by-step explanation:

The formula for angle sum of a polygon is S = 180 (n - 2), where S is the sum and n is the sides.

We are given that the sum is 2880, and are trying to find n.

Simply sub in S = 2880,

2880 = 180 (n - 2)

Divide by 180 to get (n - 2) by themselves on the right side,

16 = n - 2

Now add 2 to the other side to get n by itself

18 = n

n = 18

Hope this helped!! Please feel free to ask me if there's anything you don't understand from this working

3 0

3 years ago

Read 2 more answers

Determine whether the graph of the equation is vertical, horizontal, or neither.

julia-pushkina [17]

Answer:

horizontal

Step-by-step explanation:

7 0

3 years ago

Please help!! Urgent! Due soon! - A bedroom is initially squat-shaped with each side x feet long. The room is then expanded so t

Masja [62]

Answer:

The second one; x²+7x+12

Step-by-step explanation:

So, since the beginning lengths of the square is x and x, the area of the square is x².

But then, you add 3 to one length, so that side is now (x+3), and then you add 4 to the width, so that is now (x+4).

Finally, you would multiply them together to get the equation you would use to find the new area.

For this, you would cross-multiply everything together; the x in the length by the x in the width, the x in the length by the 4 in the width, the 3 in the length by the x in the width, and then the 3 in the length by the 4 in the width. Now, all you have to do is add all of these together to get your answer.

Here's the work:

$(x+3)(x+4)\\x^{2}+3x+4x+12\\x^{2}+7x+12$