The half-life of a radioactive kind of europium is 15 years. If you start with 90,624 grams of it, how much will be left after 75 years?

imma say 16%. sorry if its wrong. i'm doing the same stuff right now

step-by-step explanation:

2 apples

step-by-step explanation:

taking away equals subtraction. 6-4=2

your answer is

a.

5

step-by-step explanation:

answer-

the equation that models this pattern is

solution-

a researcher placed a petri dish with 32,000 bacterial cells. one hour after being placed in the vacuum chamber, the number of cells in the petri dish had halved. another hour later, the number of cells had again halved.

this can be represented as exponential decreasing function,

where,

putting the values,

y-intercept means, where x=0, so

the coordinate of this poin will be (0, 32000)

this means when x=0 or at the starting of the research, the number of bacteria cells was 32000.

after 3 hours, number of bacteria cells will be,

the   coordinate of this point will be (3, 4000)