heypeoplelol heypeoplelol

04-06-2021
Mathematics

contestada

In two half-lives, how much of a 400-gram sample of a radioactive element will remain un-decayed?

Respuesta :

Аноним Аноним

04-06-2021

Answer:

100 grams

Step-by-step explanation:

1/2 * 1/2 = (1/2)² = 1/4

1/4 * 400 = 100

Answer Link

Otras preguntas

Robert spent 3/5 of his money on lunch and 1/6 of his money he had left on a snack and some juice. Left his house with 24$ . How much money did Robert return wi

What is semi-conservative DNA replication and how does it differ from conservative replication? Which type of DNA replication is found in living organisms?

Brittni can best be described as a "people person," both at work and in her personal life. She is outgoing and friendly and loves to interact with customers,

Suppose that, based on a sample, the 95% confidence interval for the mean of a population is (61,85). What was the mean of the sample? A.73 B.81 C.69 D.77

How to write 5lbs more than 3 times the weight

Which gamete determines the sex of the offspring in animals? a. egg b. sperm

A bag contains 7 red marbles, 5 blue marbles, and 2 green marbles. What is the probability of choosing a blue marble when one marble is drawn?

Which list represents the coefficient of the term?

Cilia from the basilar membrane are embedded in a rigid structure called what? A. Cochlea B. Tectorial membrane C. Semicircular canal D. Cupula

Find a polynomial with the given zeros Can someone please help me