Answer:
calculate the number of atom in 3 mol helium
The x-coord. of the vertex is halfway between the given zeros. Here, it'd be halfway between x=3 and x=9, which comes out to x = 6 (answer).
~Shoto Todoroki here~
Answer:
( n − 2 ) × 180
Step-by-step explanation:
The formula for calculating the sum of interior angles is ( n − 2 ) × 180 ∘ where is the number of sides. All the interior angles in a regular polygon are equal. The formula for calculating the size of an interior angle is: interior angle of a polygon = sum of interior angles ÷ number of sides.
hope this helps :))
Answer:
0
Step-by-step explanation:
let each of the numbers be x :