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 ( 21+ )
Otras preguntas
John Locke’s ideas about natural rights influenced the writing of
Going to college can be expensive because of the high cost of books and tuition
The sum of two numbers is 40. The second number is 5 less than twice the first number. Let x represent the first number and let y represent the second number. W
What is the reciprocal of 4 5/8
Why are secondary sources important to the study of history? a) These sources include bones and weapons b) These sources provide information written by other a
Describe the transformation.
Amira pulls a 3 pound wagon 4 feet. How much work has she done? 3 ft-lbs. 4 ft-lbs. 7 ft-lbs. 12 ft-lbs.
How is the temperature of a liquid substance affected when it is boiling
6. A surf board rental company charges$25 for the first hour and $10 for eachadditional hour. Which equation could besolved to find the number, x, ofadditional
how is einstein on the beach different than most operas?
