Asample of an unknown chemical element naturally loses its mass over time. the relationship between the elapsed time t, in months, since the mass of the sample was initially measured, and its mass, m(t), is modeled by the following function: m(t)=120(81/625)t complete the following sentence about the rate of change in the mass of the sample. round your answer to two decimal places.
the mass of the sample decays by a factor of (3)/(5) every ? months

85.560%

step-by-step explanation:

conditional probability is defined as:

p(a|b) = p(a∩b) / p(b)

in other words, the probability that a occurs, given that b has occurred = the probability that both a and b occur / the probability that b occurs.

in this example:

p(turns 64 | turns 44) = p(turns 64 & turns 44) / p(turns 44).

if someone turns 64, they must have already turned 44, so:

p(turns 64 | turns 44) = p(turns 64) / p(turns 44)

on page 42, we see that of the original 100,000, 94944 turn 44, and 81234 turn 64.   therefore:

p(turns 64 | turns 44) = 81234 / 94944

p(turns 64 | turns 44) = 0.85560

answer: 486in^2

step-by-step explanation:

b.

step-by-step explanation:

i just know

multiplication is multiplication.   it might feel harder depending on what level of math you are in, but generally it will be the same old stuff, while implementing some new concepts and methods of solving work.