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)
I think it is acute because below 90 is acute above 90 is obtuse and exactly 90 is right
Answer:
Sorry if I get it wrong:
Answer: 3,840in
Step-by-step explanation:
The answer is C
Explanation: each ride costs $1.25 but they don’t give a number of rides therefore the number of rides is unknown and represents X. 64 was the total value of his money before the rides. With each ride you add -1.25 to 64, which gives diminishing returns for each ride.
Hope this helps !
Answer:
it's going to be negative
