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 ( 23+ )
Otras preguntas
Why was education so important to the Puritans? They believed knowledge of the Bible would protect you from the devil. Reading and writing would allow you to pa
Which statement correctly compares the four decimals by listing them in order from least to greatest? A. 0.7 > 0.6 > 0.1 > 0.3 B. 0.7 < 0.6 < 0.3
On a cosmic calendar, in which the history of the universe is compressed into one year, when did kepler and galileo first discover that we live on a planet in a
Eric counted 12 zebras and 30 pink flamingos at the zoo on Saturday. What is the ratio of zebras to pink flamingos? A. 42:30 B. 2:5 c. 5:2 D. 30:42
True or false a function is a preset formula that performs a calculation?
What did the piñata symbolize when used by Spanish missionaries? A birthday celebrations B the virgin birth C overcoming temptation D the harvest
The school store sells Midville High T-shirts for $12 each and Midville High gym shorts for $9 a pair. One afternoon they sold a total of 53 T-shirts and pairs
What happens if standard deviation is greater than mean?
What would happen if a person's body temperature dropped too lower or got too high?
3/5 X 40 PLEASE HELP
