Which is an arithmetic sequence?A)9, 12, 16, 20...B)9, 11, 13, 16...C)1, 5, 9, 13, 17...D)12, 14, 16, 18...
marta [7]
Answer: https://www.khanacademy.org/commoncore/grade-HSF-F-IF#HSF-IF.A.3
Step-by-step explanation:
copy and paste the link on to your search bar
Let n be the number of sides of a polygon.
To solve for the sum of the interior angles:
(n-2) x 180°
To solve for the measure of each interior angle of the polygon
[(n-2) x 180°] / n
To solve for the measure of each exterior angle:
360° / n
The sum of the exterior angles is always 360°
See attachment for answers.
What are we suppose to evaluate
X=-1/9 I used a calculator
F(x)=-4x-1 if you sub 3 into it you get 3(-4)-1 which is -13 and 2x+4=10