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Papessa [141]
3 years ago
15

Which formula can be used to find the sum of the measures of all the interior angles of a regular polygon with n sides?

Mathematics
1 answer:
GrogVix [38]3 years ago
6 0
B. S=(n+2)180                                                                                                            i hope it help                          
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Multiply
Cloud [144]

Answer:

12 x^4 + 18 x^3 - 9 x^2 thus D is the correct answer.

Step-by-step explanation:

Expand the following:

3 x^2 (4 x^2 + 6 x - 3)

3 x^2 (4 x^2 + 6 x - 3) = 3 x^2 (4 x^2) + 3 x^2 (6 x) + 3 x^2 (-3):

3 4 x^2 x^2 + 3 6 x^2 x - 3 3 x^2

3 (-3) = -9:

3 4 x^2 x^2 + 3 6 x^2 x + -9 x^2

3 x^2×6 x = 3 x^(2 + 1)×6:

3 4 x^2 x^2 + 3×6 x^(2 + 1) - 9 x^2

2 + 1 = 3:

3 4 x^2 x^2 + 3 6 x^3 - 9 x^2

3×6 = 18:

3 4 x^2 x^2 + 18 x^3 - 9 x^2

3 x^2×4 x^2 = 3 x^4×4:

3×4 x^4 + 18 x^3 - 9 x^2

3×4 = 12:

Answer:  12 x^4 + 18 x^3 - 9 x^2

6 0
3 years ago
Select the solution(s) of the original equation. (x + 4)2 – 3(x + 4) – 3 = 0
zzz [600]

Answer:

x = ± √3 = ± 1.7321

x = 1

x = -1

Step-by-step explanation:

If it correct can you give me Brainliest plz

6 0
3 years ago
3t/2+4t/3 I need help I suck at math
Mice21 [21]

Answer:

17 /6 t

Step-by-step explanation:

3t2+4t3

=32t+43t

Combine Like Terms:

=32t+43t

=(32t+43t)

=176t

5 0
3 years ago
Read 2 more answers
Identify the correct representation of the expression 3(x + 2)
Anettt [7]

Answer:

3x + 6

Step-by-step explanation:

It's A because x + x + x = 3x and 2+2+2 = 6

6 0
3 years ago
Round to the nearest hundred 449-162
sergiy2304 [10]
499-162=287
287 rounded to the nearest hundred is 300

the answer is 300
6 0
3 years ago
Read 2 more answers
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