Answer:
It is at 0 that mean that is the answer right?
Step-by-step explanation:
Answer:
b
Step-by-step explanation:
Answer:
17 seconds
Step-by-step explanation:
7.15 minus 6.58 is .17 or 17 seconds
Your question seems a bit incomplete, but for starters you can write

Expanding where necessary, recalling that

, you have

and you can stop there, or continue to rewrite in terms of the reciprocal functions,

Now, since

, the final form could also take

or
In terms of its radius
, the volume of the balloon is

The diameter
is twice the radius, so that in terms of its diameters, the balloon's volume is given by

Differentiate both sides with respect to time
:

The diameter increases at a rate of
. When the diameter is
, we have

or about 23,562 cc/min (where cc = cubic centimeters)