Friday

March 6, 2015

March 6, 2015

Posted by **dany** on Saturday, February 9, 2013 at 9:48am.

- arithmetic -
**Elena**, Saturday, February 9, 2013 at 10:49ama(n) = a₁ +(n-1)d

a(6) = a₁ +(6-1)d=12

a(8) = a₁ +(8-1)d=22

a₁ +5d=12

a₁ +7d=22

a₁ = -13

d=5

a(2) = a₁ +(2-1)d=

=-13 +5= =-8

**Answer this Question**

**Related Questions**

arithmetic - determine the A.P whose fourth term is 18 and the difference of the...

arithmetic - the second term of an arithmetic sequence is 15,mand the sixth term...

Math - what is the 15th term of an arithmetic sequence in which the third term ...

arithmetic - whats the first term if the third term is 21 and the eighth term is...

math - Find the 265th term of an arithmetic sequence whose second term is 5/8 ...

Math - Solve for the 1st term of the arithmetic sequence whose 33rd term is -2p ...

hi - What is the sixth term of the arithmetic sequence if the 10th term is 33 ...

math - find the 4th term of an arithmetic sequence whose first term is -8 and ...

Precalculus - The 8th term in an arithmetic sequence is 5, and the sum of the ...

math 213 #18 - A student claims that every prime greater than 3 is a term in the...