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ale4655 [162]
3 years ago
6

How do you find the measure of one interior angle of a regular 12-gon?

Mathematics
1 answer:
Airida [17]3 years ago
4 0
The SUM of the interior angleS of a regular n-gone, where n is the total number of sides: is : SUM of all angles = (n-2)*180°
For a 12-gon, then:
SUM of all angles = (12-2)*180° = 1800°
Since there are 12 interior angles, then the measure of one angle equal:

1800/12 = 150°

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3x^2+48=0, solve the equation
MAXImum [283]

Answer:

16 + x2 = 0     (16)

I THINK

Step-by-step explanation: Simplifying

3x2 + 48 = 0

Reorder the terms:

48 + 3x2 = 0

Solving

48 + 3x2 = 0

Solving for variable 'x'.

Move all terms containing x to the left, all other terms to the right.

Add '-48' to each side of the equation.

48 + -48 + 3x2 = 0 + -48

Combine like terms: 48 + -48 = 0

0 + 3x2 = 0 + -48

3x2 = 0 + -48

Combine like terms: 0 + -48 = -48

3x2 = -48

Divide each side by '3'.

x2 = -16

Simplifying

x2 = -16

Reorder the terms:

16 + x2 = -16 + 16

Combine like terms: -16 + 16 = 0

16 + x2 = 0

The solution to this equation could not be determined.

8 0
3 years ago
If a line contains the point (0, -1) and has a slope if 2, then which if the following points also lies on the line? (2, 1), (1,
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(1, 1) the slope is 2 and slopes can be read the easiest when expressed as a fraction (2/1) when the numerator (2) expresses how many digits you move the point up and the denominator (1) expresses how many points you move right
5 0
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What is the solution to the equation?
Gelneren [198K]

Answer:

Hello,

answer B

2

Step-by-step explanation:

\dfrac{2}{x} -\dfrac{x}{x+5} =\dfrac{10}{x^2+5x} \\\\we\ suppose\ x\neq 0\ and\ x\neq -5\\\\\text{Reducing to the same denominator}\\\dfrac{2(x+5)-x^2}{x(x+5)} =\dfrac{10}{x^2+5x} \\\\Simplify\ by\ x^2+5x\\\\2x+10-x^2=10\\\\-x^2+2x=0\\\\-x(x-2)=0\\\\roots\ are\ 2 \ and\ 0\ (to\ be\ excluded)\\\\Root=2\\

3 0
3 years ago
A + (-5) = 12<br><br> a) a= -17<br> b) a = -7<br> c) a = 7<br> d) a = 17
bazaltina [42]
D) is the answer ......
5 0
4 years ago
I think I'm getting better. But just in case I still don't understand , what are decimals?
vagabundo [1.1K]
Decimals are a number and a dot and more numbers
8 0
3 years ago
Read 2 more answers
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