9 is the answer for that problem
(−2h+9)(9h−2)
-18h^2 + 4h + 81h - 18
Answer: -18h^2 + 85h - 18
The surface area of this hexagonal prism is approximately 313.2cm^2
Hope this helps
Answer:
<h2> 12 because 9+3 = 12 12 • 7 = 84</h2>
Step-by-step explanation:
<h2>Hopes this helps. Mark as brainlest plz!</h2>
Let
S------> The sum of the measures of the interior angles of a polygon
n-------> number of sides of a polygon
we know that
The formula to find the sum of the measures of the interior angles of a polygon is equal to
°
in this problem
°
Solve for n

therefore
the answer is
