The subtracton property of equality allows you to subtract the same amount from both sides of an equation without changing the truth of the equation.
To solve this problem you must apply the proccedure shown below:
1. You have the following expressions shown in the problem above:
(<span>8m^2-6/n+3) + (9m^2-4/n+3)
2. As you can see, they have equal denominators, then you have:
(</span><span>8m^2-6+ 9m^2-4)/(n+3)
</span><span>
3. Therefore, when you sum, you have the following result:
(17m</span>²-10)/(n+3)
<span>
The answer is: </span> (17m²-10)/(n+3)<span>
</span>
Answer:
40°
Step-by-step explanation:
1. Shape of a nonagon: <em>9</em> (root non-)
2. Total exterior angle: <em>360°</em> (constant for all polygons)
3. Given that this polygon is regular, the one exterior angle of an nonagon is <em>360°/9</em> = 40°.
