mwood8770
mwood8770 mwood8770
  • 24-01-2018
  • Mathematics
contestada

For an arithmetic sequence where a 1
= 17 and the common difference is 5, find s 7
.
A. 219
B. 235
C. 229
D. 224

Respuesta :

jackiearjona
jackiearjona jackiearjona
  • 24-01-2018
The correct answer is C. 224
Answer Link
Аноним Аноним
  • 24-01-2018
s7  = (7/2)[2*17 + (7-1)*5]

  = 3.5 *  (34 + 30)

= 3.5 *  68  =  224 answer

D
Answer Link

Otras preguntas

what are 3 parts of observation?
why is it not useful to view science as a set of facts ?
what does tropic of cancer meansplease help :(....
How Do I Solve 3/2y= 16/y+2
Please help me what is the RATE and what is the distance traveled in 2 minutes?? Please help
what is beyond the city of ember?                               for the book:                                                  the city of ember
1. Match them together.Deforestation, combustion, circulation, weathering, calcium carbonateA.the burning of fossil fuels to make energyB.the primary component
How do u solve n-5 over 2=5
Could negative two be used as a base to rewrite 32? 64?
In Flowers for Algernon, how do Charlie's "friends" react to him becoming smarter?