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

Weightlifters are often concerned with the amount of protein in their diets because growing muscles require protein. Just as muscles need the basic building bl
Which two numbers add up to 5 and multiply to -45 ?
What's a synonym and antonym for allele
5/12-3/20 use the least common multiple as the denominator
What made americans cautious about playing too much power in the hands of a single ruler?
How is a common denominator in a common multiple alike
What were the three hardship pilgrims faced aboard the mayflower
Which two numbers add up to 5 and multiply to -45 ?
Adam volunteers once a month to make meals for shut-ins. He has 14 pieces of chicken and 21 pieces of corn. He needs to put the same number of pieces of chicke
At STP, which 2.0-gram sample of matter uniformly fills a 340-milliliter closed container?