Part c if you accidentally spill phosphorus-32 onto your shoe, how long would it take before 99.9% of the radioactive material has decayed so that you can safely wear the shoes again? express your answer as an integer. view available hint(s)

Step-by-step explanation:

The half-life of the phosphorus-32 is 14.3 days. The time constant of the isotope is:

The decay formula is:

The time related to the decayed proportion of the radioactive isotope is:

the one on the bottom left

step-by-step explanation:

all of the other ones have a specific pattern

x > 1.3

step by step:

8.5−0.9x> 9.8−1.9x

step 1: simplify both sides of the inequality.

−0.9x+8.5> −1.9x+9.8

step 2: add 1.9x to both sides.

−0.9x+8.5+1.9x> −1.9x+9.8+1.9x

1x+8.5> 9.8

step 3: subtract 8.5 from both sides.

1x+8.5−8.5> 9.8−8.5

1x> 1.3

step 4: divide both sides by 1.

1x/1 > 1.3/1