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

The factory workers make 756 machine parts in 36 hours.Suppose the workers make the same numbers of machine parts each hour..How many machine parts do they make
overproduction and underconsumption factored into causing the Great Depression by
The length of a side of a square is 5x+2 units. Assuming the perimeter is 48 units, what is the area of the square?
What is 9m + 2 = 3m - 10
Which part of a scientific argument must be supported by valid data
Relate the statement you can't get something for nothing to the law of conservation of mass
what is one thing that juan ramon jimenez and mario jose molina have in common
How do you simplify 28/50?
To create an image that is not harmonious, an artist could
what universal conflicts does the Crucible deal with?