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Stels [109]
3 years ago
10

The sum of the interior angles of a convex n-sided polygon can be found using the formula:

Mathematics
1 answer:
Maksim231197 [3]3 years ago
8 0

It is: 180(n-2)

For example, the sum of the interior angles of a triangle is 180 degrees.

The quadrilateral can be cut into two triangle so the sum of the interior angles of a quadrilateral is 180*2=180*(4-2)

The pentagon can be cut into three triangle so the sum of the interior angles of a pentagon is: 180*3=180*(5-2)

The hexagon  can be cut into four triangle so the sum of the interior angles of a hexagon is: 180*4=180*(6-2)

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Binomial theorem Expand (5 - y)3
Snowcat [4.5K]

Answer:

(5 - y) ^3 = 125 - 75y + 15y^2 - y^3

Step-by-step explanation:

Binomial expression

1

1. 1

1. 2. 1

1. 3. 3. 1 --------power of 3

( 5 - y) ^3

( 5 - y) (5 - y) (5 - y)

( a + b) ^3 = a^3 + 3a^2b + 3ab^2 + b^3

a = 5

b = -y

( 5 - y) ^2 = ( 5 - y) (5 - y)

= 5( 5 - y) - y(5 - y)

= 25 - 5y - 5y + y^2

=(25-10y+y^2)

( 25 - 10y + y^2)( 5 - y)

= 5(25 - 10y + y^2) - y( 25 - 10y + y^2)

= 125 - 50y + 5y^2 - 25y + 10y^2 - y^3

Collect the like terms

= 125 - 50y - 25y + 5y^2 + 10y^2 - y^3

= 125 - 75y + 15y^2 - y^3

7 0
3 years ago
Help me with this please.
Aneli [31]

6 is the correct answer.

3 0
3 years ago
PLEASE!!! ASAP!!! WILL GIVE BRANLIEST!!! SHOW & EXPLAIN!!
pashok25 [27]

Answer:

365 messages

Step-by-step explanation:

x = # text messages)

16.5 = 10 + .10(x - 300)

6.5 = .10x - 30

36.5 = .10x

x = 365

6 0
3 years ago
Read 2 more answers
What is the answer to <br> -100%+0.58= ?
3241004551 [841]

Answer:

-0.42

Step-by-step explanation:

7 0
3 years ago
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The perimeter of a rectangle is twice the
Shkiper50 [21]

Answer:

L=16 W=7

Step-by-step explanation:

P=2(L+W)

L=2W+2

46=2(2W+2)+2W

(((7×2)+2)=16×2=32

(16-2)/2=7×2=14

32+14=46 or 16+16+7+7=46

3 0
3 years ago
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