The radical of a psherical ball is decreasing at a constant rate of 3cm per second. find in cubic centimeters per second

Volume will decrease at a rate of

Step-by-step explanation:

We have given rate of change of radius is 3 cm per second

So

Volume of the ball is given as

So

As

So

So volume will decrease at a rate of

step-by-step explanation:

the original amount doesn't ''re just looking for the time it takes for 1/2 of the substance to we have

(1/2) =)     take the ln   of both sides

ln (1/2)   = )   and we can write

ln(1/2) = ) lne     and lne   = 1     so we have

ln(1/2) = -.1092t     divide both sides by -.1092

t = ln(1/2)/-.1092 = about 6.347 days = about 6.3 days (rounded)

the answer is 489

step-by-step explanation: