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 ( 78+ )
Otras preguntas
Imani is studying a play. She has just read a monologue in which a ruthless character named Hermione confronts the play’s protagonist. Hermione challenges the p
How does deforestation affect bear population?
what is the value of the digit 2 in 0.025
How do sliding wheels on snow or ice affect a drivers ability to control the vehicle
four more than twice a number is 8
Why did Americans want to control the Mississippi River?
Which word set completes the following analogy? desert : flood :: __________:_________ jungle : drought dry : air lost : location identify : recognize
Based on the context in which it appears in this excerpt from Charles Dickens’s A Christmas Carol, what is the meaning of the word obscene? “Putting it on him t
A bowling ball and a soccer ball are both rolling at the same speed. Which has more kinetic energy and why?
Ten students in Mrs. Porth class bring muffins to the bake sale six students bring bran muffins the rest bring six blueberry muffins how many blueberry muffins.
