DrPepper21 DrPepper21
  • 22-12-2017
  • Mathematics
contestada

Find the sum of the first 9 terms of the sequence. Show all work for full credit.

2, -7, -16, -25, ...

Respuesta :

IAmAMathAddict
IAmAMathAddict IAmAMathAddict
  • 24-02-2018
we can see the sequence goes by decreasing 9 on each number

so the numbers are

2, -7, -16, -25, -34, -43, -52, -61, -70

so adding all these numbers we get

2-7-16-25-34-43-52-61-70

= -306


hope this helped
Answer Link

Otras preguntas

17+3.6btw it's an decimal
on Monday Jan made withdrawals of 25$, 45$, and 75$ from her saving account. on the same day, her twin sister Julie made withdrawals of 35$, 55$, and 65$ from h
what are the columns and rows of the periodic talbe of the elements called
Who were known as "carpetbaggers" and "scalawags"?
Jed has 5/6 of tank gas,while Jimmy has 6/7 of tank of gas. Who has a larger portion of their tank filled with gas and by how much more?
What sentiment is mr. kapasi expressing when he wonders, "perhaps they, too, … had little in common apart from three children and a decade of their lives."?
The map of Mississippian Indian settlement is most likely displaying which cultural characteristic prior to European contact?
Which type of biography is not affected by errors in the biographer’s memory
simplest form for 10/32
Which pair of numbers shows a common factor and a common multiple of 15 and 18 Question 3 options: 3 and 60 3 and 90 5 and 180 6 and 270