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 ( 46+ )
Otras preguntas
22. Abnormalities In the 1980s, it was generally believed that congenital abnormalities affected about 5% of the nation’s children. Some people believe that the
A law firm received $2,000 cash for legal services to be rendered in the future. The full amount was credited to the liability account Unearned Legal Fees. If t
Following vigorous exercise, the body temperature of an 79-kg person is 41∘C. At what rate in watts must the person transfer thermal energy to reduce the body t
A bedroom set lists for $7,000 and carries a trade discount of 20 percent. Freight (FOB shipping point) of $120 is not of the list price. Calculate the final p
A bullet is fired horizontally, and at the same instant a second bullet is dropped from the same height. Ignore air resistance. Compare the times of fall of the
A RIGHT triangle has three sides: a, b, c such that a=b and LaTeX: a^2\:+\:b^2\:=\:c^2 a 2 + b 2 = c 2 What is the ratio of the longest side to the shortest
∣2.6∣ what do the vertical lines mean on the outside of the number
The experience of emotion, the regulation of emotional expression, and basic biological drives are of particular interest in abnormal psychology. These function
In order to assess the physical health of a newborn baby, an obstetrician would assign ratings according to the ____ scale. If the baby receives a score of 7 or
how many spindles are in a weaving loom
