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

what is 402 rounded to the nearest ten and hundred
During what period did Egypt reach the height of its power
The Aryan migration began its spread into India through the Indus River Valley mainly because
What often occured when trade brought new civilizations into contact with one another?
explain how to order a set of real numbers
what is the number 8.293 round on the hundredths
What passages illustrate Paine's effort to write in language ordinary readers can understand in the book of Voices of Freedom by Thomas Paine
If you're currently earning $9.25 per hour and you received a 4% increase, what would be your new hourly rate
The ratio of boys to girls in the 9th grade is 5 to 6. There are 312 girls. How many boys are there?
For whom did the Massachusetts Bay Colony provide a safe religious haven?