Which of the following are equal to 4^-3/4^-5 A: 4^2
B: 1/4^2
C: 16
D: 1/16
E: 4^-2 x 4^4

answer: dead jah

step-by-step explanation:

bullet + jah= dead jah

explanation:

step-by-step explanation:

the answer to this is a. a^2 + b^2 = c^2

ending amount = beginning amount / (2^n)

where "n" = number of half-lives (or elapsed time / half-life)

ending amount = 50 mg / (2 ^10 / 5.3)

ending amount = 50 mg / (2 ^ 1.8867924528)

ending amount = 50 m / 3.6981210597

ending amount = 13.5203794557 mg

or about 13.5 mg remain

source: