If the points are collinear, then that would mean that the points lie on the same line when joined to each other. In order to confirm this, the distances between the points must sum up to the length of the line.

AB + BC = AC
7 + 4 ? 9
11 ≠ 9

Since they do not sum up, therefore, the points are not collinear.

8 0

3 years ago

What is the sum of the interior angles of a 24 sided regular polygon? Show your work.

expeople1 [14]

Answer:

3,960 degrees

Step-by-step explanation:

The sum of interior angles of a polygon can be found using:

S= (n - 2)*180

where s is the sum, and n is the number of sides.

This is a 24 sided polygon. Therefore, substitute 24 in for n (number of sides).

S = (24 - 2)*180

Subtract inside the parentheses first

S= (22)*180

Multiply 22 and 180

S=3960

The sum of the interior angles of a 24 sided polygon is 3,960 degrees

7 0

3 years ago

2/7x+1/2x=40/7-1/6x solve for x

torisob [31]

Answer:

Keeping in mind the 'x' is in numerator, i got the answer to be 6.

Step-by-step explanation:

2/7x + 1/2x = 40/7 - 1/6x

2/7x + 1/2x + 1/6x = 40/7

2/7x + (3+1)/6x = 40/7

2/7x + 4/6x = 40/7

2/7x + 2/3x = 40/7

(2*3)+(2*7) / (7*3)x = 40/7

(6+14) / 21x = 40/7

20/21x = 40/7

20x = 40*21/7

20x = 40*3

x = 40*3 /20

x = 2*3

x=6

8 0

3 years ago