Wednesday

April 16, 2014

April 16, 2014

Posted by **Anonymous** on Tuesday, September 13, 2011 at 10:44pm.

Now it says..which of the numbers -268 and -350 are terms of the sequence?

I was doing something like this:

tn = -7 (-268) +19

I was plugging -268 as n. But that just confused me. How do I figure this out?

- Math Formula Part 2/3 -
**Reiny**, Wednesday, September 14, 2011 at 8:45amNo, you are trying to find n.

Phrased another way:

Which term in the sequence is equal to -268

let that term number be n

remember tn = a + (n-1)d

from your previous post

a =

d =

-268 = 12 + (n-1)(-7)

-280 = -7n + 7

-287 = -7n

n = 41

so the t41 = -268

Do the same thing for tn = 350

remember , that n has to be a positive whole number, or else there is not such term.

**Related Questions**

Math - 3(-5)squared -2/-5(2)/2 squared I don't get the second part but... any ...

Physcis - In the process of starting up the car plant, a turbine accelerates ...

ALG 2 PLZ PLZ HELP - As you can see, the biker and his friend are having a hard ...

math - (a) You have of an hour to take a three-parts exam. You use of an hour ...

VB - I am new here; say to everyone first. Here is the a question for coding ...

Calculus - After t hours of an 8-hour trip the distance a car travels is modeled...

math - Find the f''' of function f(x) = e2x6 + [lnx]2. Does we need to do by ...

10th grade - Suppose that a kid was casually sledding down a gentle slopping ...

math algebra - Part 1: Which part of the quadratic formula tells you whether the...

math sos. - dURING THE FIRST PART OF A TRIP, A CONOEIST TRAVELS53 MILES AT A ...