Which expression gives the volume of a sphere with radius8?

Step-by-step explanation:

The formula for calculate the volume of a sphere is shown below:

Where V is the volume of the sphere and r is the radius of the sphere.

The problem says that the radius of the sphere is 8. Then, you only need to substitute this value into the formula shown above.

Therefore, you can calculate it as following:

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)

x> 6

step-by-step explanation:

8x+8> 7x+14

8x-7x> 14-8

x> 6