jessicagarcia85
jessicagarcia85 jessicagarcia85
  • 12-08-2018
  • Mathematics
contestada

what is the explicit formula for the arithmetic sequence -100,-70,-40,-10

what is the explicit formula for the arithmetic sequence 100704010 class=

Respuesta :

gmany
gmany gmany
  • 12-08-2018

The explicit formula of an arithmetic sequence:

[tex]a_n=a_1+(n-1)d[/tex]

We have:

[tex]a_1=-100,\ a_2=-70,\ a_3=-40;\ a_4=-10,\ ...\\\\d=a_{n+1}-a_n\to d=-70-(-100)=-70+100=30[/tex]

Substitute:

[tex]a_n=-100+(n-1)(30)=-100+30n-30=30n-130[/tex]

Answer: an = 30n - 130

Answer Link

Otras preguntas

A dependent clause is also called a(n) ___clause
While the sun shone, they stayed on the beach
the United states organized it's Midwest territories with borders _______
In a group of 48 people, there are twice as many boys as girls. How many girls are there?
Maintaining a healthy weight is simply balancing the calories being consumed with the calories spent. true false
True or false? current is the amount of electrical pressure in a given circuit
The sun produces 3.826 x 1026 Joules of energy every second as it combines smaller hydrogen atoms into larger helium atoms. What is the name of the process whic
what is 500 divided by 56?
Which lines in wordsworth's lyric poem "the solitary reaper" present the reaper's song as more beautiful than nature?1.) behold her, single in the field,yon sol
How did aztec use chocolate??