What is the approximate volume of a cylinder with a radius of 8cm and height of 5cm? _cm^3. A) 62.8, B) 251.2, C) 25.1, D)502.4, E)1004.8

E)  1004.8

Step-by-step explanation:

Volume of a cylinder, V = πh

Radius, r = 8 cm

Height, h = 5 cm

π = 3.14

Substitute the values of r and h

V = 3.14 * 8^2 * 5

V = 3.14 * 64 * 5

V = 1004.8

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)

21

step-by-step explanation: