How do you do this question?

(-½, ½)

Step-by-step explanation:

r = -2x.  The geometric series converges when -1 < r < 1.

-1 < -2x < 1

½ > x > -½

The interval of convergence is (-½, ½).

the correct is answer is a 9-sided polygon!

exa:

)

3+11

14

step-by-step explanation:

from this example, we can see that subtracting with integers is the same as adding the opposite. we can solve using a number line or by using the saying "keep, change, change" to us solve. it is important to remember that we can subtract a negative and end up with a larger number than we started with.