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 ( 95+ )
Otras preguntas
-5x-2=13, find x please
Organisms of the same species that can reproduce to make more of that species are calledComminityBiomePopulationSpecies/Organism
Ran 300 meter in 40 seconds, what is the speed?
I NEED HELP PLEASE !!!!!!!
the ratio of pretzels to peanuts is 4:9 at the same rate if there are 80 pretzels how many peanuts are there
2. A science book is being pushed across a table. Can the book have a constant speed and a changing velocity? Explain.
describe the relationship between the area of the circle and its circumference the _ is _ times the __ times the cercomfrince 1 o
5. During the nifty home experiment, a playing card was placed on top of a glass and then a quarter was placed on top of the card. When the card was pushed, the
What Coulombs discovered almost 300 years ago
PLEASE HELL ME PLEASE THIS IS DUE PLEASE
