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

what is the rate for 4 pounds in 20 years what is the unit rate for 1 year

If the equation of a circle is (x + 4)2 + (y - 6)2 = 25, its center point is (4, 6) (-4, 6) (4, -6)

7(g-4)=3 slove for g

Which of the following is NOT a benefit of good body composition? a. increased metabolic efficiency b. reduced risk of cardiovascular disease c. increased range

Snowmobiles price at $2,800 is on sale for 20% off the sales tax rate is 8.25 % what is the sale price including tax

Kennedys political agenda was known as the new deal true or false

Which of the following does the Consumer Price Index (CPI) measure? A. recessions B. inflation C.interest rates D.unemployment

What reform movement led women to consider their own lack of rights? A. The abolitionist movement B. The Native American movement C. The national

Elements of Romanticism include an emphasis on emotion, individuality, and passion. a. True b. False

The process of closing or state of being closed of a passage is called