Answer:
![A.\ a_n=n^2+1](https://tex.z-dn.net/?f=A.%5C%20a_n%3Dn%5E2%2B1)
Step-by-step explanation:
![Check:](https://tex.z-dn.net/?f=Check%3A)
![a_n=n^2+1\\\\a_1=1^2+1=1+1=2\qquad CORRECT\\\\a_2=2^2+1=4+1=5\qquad CORRECT\\\\a_3=3^2+1=9+1=10\qquad CORRECT\\\\a_4=4^2+1=16+1=17\qquad CORRECT\\\\a_5=5^2+1=25+1=26\qquad CORRECT](https://tex.z-dn.net/?f=a_n%3Dn%5E2%2B1%5C%5C%5C%5Ca_1%3D1%5E2%2B1%3D1%2B1%3D2%5Cqquad%20CORRECT%5C%5C%5C%5Ca_2%3D2%5E2%2B1%3D4%2B1%3D5%5Cqquad%20CORRECT%5C%5C%5C%5Ca_3%3D3%5E2%2B1%3D9%2B1%3D10%5Cqquad%20CORRECT%5C%5C%5C%5Ca_4%3D4%5E2%2B1%3D16%2B1%3D17%5Cqquad%20CORRECT%5C%5C%5C%5Ca_5%3D5%5E2%2B1%3D25%2B1%3D26%5Cqquad%20CORRECT)
Used PEMDAS:
P Parentheses first
E Exponents (ie Powers and Square Roots, etc.)
MD Multiplication and Division (left-to-right)
AS Addition and Subtraction (left-to-right)
First Power, next Addition
2220 miles divided by 554mph would give you 4 hours
Hello, Julio can be no younger then 11. Hoped I helped!
Answer:
n/6
Step-by-step explanation:
If angle bisector of angle DBC is BE. What is m angle EBC, then <DBE = <EBC
Since <ABC = <ABD+<DBC
n = 2<DBC+<DBC
n = 3<DBC
<DBC = n/3
Since <DBC = 2EBC
n/3 = 2<EBC
n/6 = <EBC
Hence <EBC = n/6