1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Phantasy [73]
3 years ago
13

Mr. Avogadro started with 5.14x10^22 atoms of Pa-234. Ten days later Mr. Avogadro calculated the original sample had only 6.43 X

10^21 atoms of Pa-234. What's the half life of Pa-234? PLEASE HELP WILL MARK BRAINLIEST
Mathematics
2 answers:
sasho [114]3 years ago
8 0

Answer:

is 1

step by step explanation:

Kipish [7]3 years ago
4 0
The answer is 1 hope this helped you!!!!:)
You might be interested in
Can someone help me please
Nesterboy [21]
1. The triangle is Isosceles and acute A (since there are two equal sides and the angles are less than 90)
2. Right triangle E (since there is a right angle)
3. The triangle is obtuse scalene T (since there are no equal sides and one angle is greater than 90)
4. Right isosceles O
5. Acute equilateral N
6. Obtuse scalene T<span />
8 0
3 years ago
What is the value of 7 in the number 8975
astraxan [27]

Answer:

70?

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
Which pair of numbers is relatively prime A.)57 and 96 B.)68 and 118 C.)70 and 195 D.)143 and 323
creativ13 [48]
I think is D , hope i answer fast enough haha :D
8 0
3 years ago
Read 2 more answers
Thank you whoever answers! <br>^ ^​
Ivanshal [37]

Answer:b

Step-by-step explanation:

Isolating means leaving something on one side of the equation. In this situation, one has to subtract the 2t from both sides

6 0
3 years ago
What fraction is shown on the number line?
Alja [10]
The answer should be 7/10!
6 0
3 years ago
Read 2 more answers
Other questions:
  • When x=12,y=8. Find x when y=12
    6·1 answer
  • PLEASE SHOW YOUR WORKING OUT THANKS
    5·2 answers
  • A party rental company has chairs and tables to rent. The total cost for 3 chairs and 2 tables is $25. To rent 5 chairs and 6 ta
    8·1 answer
  • Write this number in standard form.12 ten thousands,8 thousands,14 hundreds,7 ones
    11·1 answer
  • Factor: a^5+2a+a^4+2.
    10·1 answer
  • You are buying a $14.95 item that has 4.5% sales tax. You give the cashier a $20 bill. How much change do you get back?
    11·2 answers
  • Which point has coordinates (-5, -5) ?
    7·1 answer
  • Calcola l'area di un rombo sapendo che il perimetro è 160 cm è la sua altezza misura 38,4 cm​
    15·1 answer
  • The square root of the sum of two consecutive odd integers is equal to 6. Find the larger integer.
    6·1 answer
  • What is the approximate area of a circle with a raduis of 15
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!