Friday

August 29, 2014

August 29, 2014

Posted by **bob** on Wednesday, January 18, 2012 at 4:10pm.

- math -
**Reiny**, Wednesday, January 18, 2012 at 5:23pmnumber of terms ---- n

a=1

term(n) = a + (n-1)d

2009 = 1 + (n-1)2

2009 = 1 + 2n - 2

2n = 2010

n = 1005

sum = (1005/2) (1 + 2009) = 1010025

**Related Questions**

SUMS? - what is the sum of the first towo odd numbers? what s the sum of the ...

math - Consider the following sums of numbers and how they are formed: 1 odd ...

Math riddle - nine odd numbers have a sum of 243.find the sum of the first and ...

Math - Sum the first two odd numbers, then the first three, the first four, and ...

Math - Find the sum of the first 35 consecutive odd numbers. What is the sum of ...

Math riddle - nine odd numbers have a sum of 243.find the sum of the first and ...

Geometry - Working on conjectures. The question is Conjecure: The product of any...

math - if you have 3 rows and three columns and you have to find the hidden ...

Math - 5 times the least of three consecutive odd numbers is 35 more than twice ...

Math 130 - Sum the first two odd numbers, then the first three, the first four...