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Nat2105 [25]
2 years ago
6

Hey can y’all help me

Mathematics
1 answer:
Scrat [10]2 years ago
8 0

\huge{ \rm{Question:}}

What is the internal angle sum of a polygon with 20 sides?

A) 3,240°

B) 3,420°

C) 3,600°

D) 3,780°

\huge{ \rm{Answer:}}

<h3>A) 3,240° </h3>

HOPE THIS HELPS^^

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Please help with these problems! Will mark answer as brainliest and give 30 points. You have to show your work for each problem.
gulaghasi [49]

Answer:

1) (2x + 2)(x + 2)

2)  2(x + 1)(x - 1)

3) (x^2 + 3)(x^2 - 3)

4) 2x(x + 5)(x - 2)

5) (5x + 2y)(5x - 2y)

Step-by-step explanation:

1)

2x^2 + 6x + 4

= 2x^2 + 4x + 2x + 4

= 2x(x + 2) + 2(x + 2)

= (2x + 2)(x + 2)

2)

2x^2 - 2

= 2(x^ 2 - 1) (The difference of two squares)

= 2(x + 1)(x - 1)

3)

x^4 - 9 (The difference of two squares)

=(x^2 + 3)(x^2 - 3)

4)

2x^3 + 6x^2 - 20x

= 2x(x^2 + 3x - 10)

= 2x(x + 5)(x - 2)

5)

25x^2 - 4y^2         (The difference of two squares)

= (5x + 2y)(5x - 2y)

4 0
3 years ago
Help now i have 20 mins!!!!!!!!!!!
IgorLugansk [536]

Answer:

Hope this solution helps you

7 0
3 years ago
After plotting the data where x represents the length of the side of a polygon, and f(x) represents the area of the polygon, Jac
Zigmanuir [339]

Answer:

See the attachment

Step-by-step explanation:

It is convenient to use a spreadsheet or graphing calculator for this.

3 0
3 years ago
Read 2 more answers
A square has an area of 81 yd^2. what is the length of each side
lara31 [8.8K]

Answer:

9 yards

Step-by-step explanation:

A square has 4 equal sides, this means the 2 sides we will multiply to get the area are going to be the same. Since it says 81 yards squared and the shape is a square, we can do the square root of 81 which is 9.

7 0
3 years ago
Read 2 more answers
Write a real world situation for this in equality X is greater than or equal to nine.
gavmur [86]
Explain your question more
7 0
3 years ago
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