Sunday

December 21, 2014

December 21, 2014

Posted by **Ally** on Tuesday, December 18, 2012 at 7:33pm.

- Math -
**Reiny**, Tuesday, December 18, 2012 at 8:18pmt(4) = ar^3 = -4

t(8) = ar^7 = -324

divide t(8) by t(4)

r^4 = 81

r = 81^(1/4) = ± 3

if r = +3

in t(4)

a(3^3) = -4

a = -4/27

t(10) = (-4/27)(3^9) = -2916

if r = -3

a = -4/-27 = 4/27

t(10) = ar^9 = (4/27)(-3)^9 = 4(-729) = -2916

either way, t(10) = -2916

**Answer this Question**

**Related Questions**

math - A sequence is generated in which each term is 9 more than the previous ...

math - The third term of a geometric progressiom is nine times the first term.if...

Math - 3,5,-5... The first term in the sequence of #'s shown above is 3. Each ...

Math - 1. What is the tenth term of the geometric sequence whose first term (a1...

math - the 4th term of a geometric sequence is 1/2 and the tenth term is 1/128 ...

math - the 4th term of a geometric sequence is 1/2 and the tenth term is 1/128 ...

math - The 3rd term of a geometric progression is nine times the first term.if ...

math - the third term of a geometric sequence is 25 and the eighth term is 25/32...

Math binomial formula and sequence - a) use the binomial formula to find the 5th...

math - the 3rd term of a geometric progression is nine times the 1st term.if the...