Answer:

Step-by-step explanation:
<u>The Volume of a Sphere
</u>
The volume of a sphere of radius r is given by:

A. )
If the diameter of the sphere is d, the radius is r=d/2. Substituting:

Operating

Simplifying

B.)
The diameter of the sphere is 2/3 cm, thus the volume is:

Operating:



Answer:
The sequences which are geometric are
16,-8,4,-2,1
625,125,25,5,1
-15,-18,-21.6,-25.92,-31.104
Step-by-step explanation:
Geometric sequences are ones in which you multiply or divide to get the next terms in the sequence.
Cheers
They like action not comedy
3.06; lining it up 4*9= 36, write the 6 and carry the 3, then 9*3= 27, add 3 and you get 30. Since in your original problem you have two places behind the decimal point you do the same with your answer so that 306 turns into 3.06