EugeneLil EugeneLil
  • 03-08-2016
  • Mathematics
contestada

Find the 113th term in the sequence
-10.5, -6.6, -2.7, 1.2, ...

A)-447.3 B) 426.3 C)430.2 D)-1172.1

Respuesta :

dalendrk
dalendrk dalendrk
  • 09-08-2016
-10.5; -6.6; -2.7; 1.2; ...

It's an arythmetic sequence:

[tex]a_1=-10.5;\ d=-6.6-(-10.5)=3.9\\\\a_n=a_1+(n-1)d\\\\a_n=-10.5+(n-1)\cdot3.9=-10.5+3.9n-3.9=3.9n-14.4\\\\a_{113}=3.9\cdot113-14.4=440.7-14.4=426.3\\\\Answer:\boxed{a_{113}=426.3}\to\fbox{B)}[/tex]
Answer Link

Otras preguntas

Describe Mr. Hundert. Comment on his physical appearance, demeanor, character, interactions with his students, relationships with other colleagues, view of his
what is the area of a tile floor that is 12.8 feet long and 9.5 feet wide
Someone please help me out!
1. Nominal executive head of the country​
What would the IUPAC name be?
Which is the most liquid asset? A) jewelry B) change jar C) car D) lake house
HELPPPPP PLEASEEE!!!!
Writing: write an e-mail to your friend about the importance of reading.
Jamie has $150 in her savings account before the summer and will be saving $10 per hour babysitting this summer. Kate has $50 in her account before the summer a
Which is a sustainable practice?