The half-life of a certain radioactive material is 85 days . An initial amount of the material has a mass of 801 kg. Find how long it will take until there is 100 kg of the radioactive material remaining.

f(x) = - 2/3x + 5; f(5/2)

substitute 5/2 in for x:

f(5/2) = -2/3(5/2) + 5

simplify the right side:

f(5/2) = -5/3 + 5

f(5/2) = 10/3

answer:

f(5/2) = 10/3

i hope this you!

all it means is function 3

dont trust me im no expert these losers made me fail a test bro this sucks

step-by-step explanation:

answer: 94

step-by-step explanation: 79+91+92+94+94 = 450 divided by 5 (since there are 5 number that are being added) = 90