Answer:
Step-by-step explanation:
Here are the 3 answers you needed :)!!!
Answer:
19 out of 25
Step-by-step explanation:
Add 30+46= 76
Divide 76/100= 19/25
Answer:
I am not getting what is this
12.28 = 12 and 28 hundredths so its 12
Hope I helped!
Answer:
We are given
Scientist begins with 150 milligrams of a radioactive substance
so,
we can use formula
we can plug Po=150
After 29 hours, 75 mg of the substance remains
so, at t=29 , P=75
we can plug it
now, we can solve for k
now, we can take ln on both sides
now, we can plug it back
and we get
we can plug t=33
we get
..............Answer
Step-by-step explanation:
