aguzman aguzman
  • 03-07-2015
  • Mathematics
contestada

the sum of the first 30 terms of the sequence an=6n+5 is

Respuesta :

kimeto3
kimeto3 kimeto3
  • 03-07-2015
Sum= n(a₁+an)/2 where a₁ is the first term, and an is the nth term(30th for this)
an= 6n+5
a₁=6(1)+5
   =11
a₃₀=6(30)+5
     =185
Sum= 30(11+185)/2
       =15(196)
       =2940
Answer Link

Otras preguntas

what multiplication problem equals 2,331
The foundation was poured in order to establish a more______ platform
If you were to examine the system of government in the United States and relate it to an athletic event, then the Constitution would act like A. the rulebook.
Find the product of the complex number and it's conjugate. 9-5i
You have decided to use a worksheet to keep track of your monthly income and expenses. What categories might your worksheet include? How would you determine t
helping someone on your own team when they are injured is part of having compassion in sports. true or false.
what is holistic health care
how or what do you draw to represent the loyalists and the patriots weiw of the boston masacre
What problem did federalism solve when the constitution was being written.
find the ratio of the sequence 3 9 27 81