The formula for the sum of the interior angles of a polygon is equal to (n-2)*180. the polygon has 12sides, so the sum of the interior angles of the polygonis equal to (12-2)*180 = 10*180 = 1800 degrees.

4 0

3 years ago

Some one pleae help!

Aleksandr-060686 [28]

Answer: $\frac{61}{70}$

Step-by-step explanation:

let's take the two given distances and add them together

$\frac{3}{10}+\frac{4}{7}$

Now let's make give them a common denominator of 70

To do this we need to multiply $\frac{3}{10} (\frac{7}{7} ) and \frac{4}{7} (\frac{10}{10})$

$\frac{21}{70}+\frac{40}{70}$

$\frac{61}{70}$

7 0

3 years ago

What is the solution to the system of equations? x=4y+6 x-3y=4

dem82 [27]

$\left \{ {{x=4y+6} \atop {x-3y=4}} \right. \\\\
4y+6-3y=4\\\\
y+6=4\ \ \ \ | subtract\ 6\\\\
y=-2\\\\
x=4y+6=4*(-2)+6=-8+6=-2$

6 0

4 years ago

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