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

About one in _____ adult americans experiences a diagnosable mental illness

Your company uses virtualized servers extensively and has many offline vms. a role must be added to some offline vhds. what do you do?

9 full moons in 252 days rate

you have 7/8 of a pizza left over from a party you would like to give each friend 1/4 of the leftover pizza how many friends can you give 1/4 of a pizza too?

When the posted speed limit is 70 mph, the minimum speed limit is ___________ mph. a. 40 b. 50 c. 60?

Poppy, felix and Alexi sell 700 raffle tickets between them. Poppy sells twice as many tickets as Felix, and Alexi sells 25 more than poppy. How many tickets di

An electric clothes dryer draws 15 a of current from a 240-v wall outlet. how much power, in watts, does it use?

2 equal x subtract 9x equals 14

Which concept describes the formation of four equivalent, single, covalent bonds by carbon in its compounds that resembles methane, ch4?

Read this excerpt from the Declaration of Independence. Which portion of the text reflects the Founding Fathers’ ideas about the natural rights all people are e