beevus6258
beevus6258
03-10-2018
Mathematics
contestada
If an = n(n+2), what is a9?
20
99
108
120
Respuesta :
Kamikazeminem
Kamikazeminem
03-10-2018
[tex]a_{n} = n(n + 2) \\ a_{9} = 9(9 + 2) = 99[/tex]
Answer Link
Tucon
Tucon
03-10-2018
an = n(n+2)
⇒ a9 = 9(9+2) = 9 × 11 = 99
Answer Link
VER TODAS LAS RESPUESTAS ( 87+ )
Otras preguntas
Two blocks are the same size one block has a higher temperature than the other. Which describes the thermal energy of these blocks
What did the archetype of the devil usually symbolize in the American romantic literature The greed, cruelty and dishonesty of society The religious beliefs and
Define the following word using the meaning of the suffix. Use your dictionary if you are uncertain of the definition. earthen
In Triangle ABC, if ,AE ,BF and CD are the medians and AE and BF intersect at the point (2, 3), at what point does CD intersect AE ?
Our constitution is called a democracy because power is in the hands...of the whole people...An Athenian citizen does not put his private affairs before affairs
Through the 20th century and continuing today, the nature of federalism has changed over time with new demands that have tended toward a system where the state
What did the archetype of the devil usually symbolize in the American romantic literature The greed, cruelty and dishonesty of society The religious beliefs and
Kathy lives directly east of the park. The football field is directly south of the park. The library sits on the line formed between Kathy's home and the footba
Congress shall have power...to make all laws which shall be necessary and proper for carrying into execution the foregoing powers.... This section of the Consti
Opium is a spice cherished by the Chinese. true or false
