Answer:
you can do (500)(4) x 2
Step-by-step explanation:
500 x 4 = 2000
2000(2) = 4000
Answer:
-4
Step-by-step explanation:
1. They are alternate exteriors meaning they are supposed to be the same so you sort the equation like 134+x=130
2. Then you pass 134 both side like ×=130
-134
3. Which will equal :-4
Answer:
the answer is b
Step-by-step explanation:
it would be a 1/10 cause i took the test and got it right
Given that the half life of 3H is 12.3 years.
The amount of substance left of a radioactive substance with half life of

after t years is given by

Therefore, the number of years it will take for 18% of the original tritinum to remain is given by

Therefore, the number of <span>years that the time could be read at night is 30.4 years.</span>