x-intercept(s):
(−5−√93/2,0),(−5+√93/2,0)
y-intercept(s):
(0,−17)
pi times radius equals the area of a circle
Answer:
<em>d</em> = 24.63
Step-by-step explanation:
82.53 - (21.7 + 17.3 + 18.9) =
24.63
The given series is geometric with common ratio 
, which converges if 
(i.e. the interval of convergence). We have the well-known result
If you're not familiar with that result, it's easy to reproduce.
Let 
be the 
-th partial sum of the infinite series,
Multiply both sides by the ratio.
Subtract this from to eliminate all the powers of the ratio between 0 and 
.
Solve for .
Now as 
, the exponential term converges to 0 and we're left with
