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
valentinak56 [21]
2 years ago
13

If there is 520 grams of radioactive material with a half-life of 12 hours, how much of the radioactive material will be left af

ter 72 hours and is the radioactive decay modeled by a linear function or an exponential function?
Mathematics
2 answers:
AURORKA [14]2 years ago
3 0
This is a fairly easy half-life problem
Each half-life reduces the radioactive material by one half.
So after 72 hours the radioactive material would have undergone 6 half-lives. 
2^6 = 64.
So, there will be one sixty-fourth of the material left.
520 / 64 = 8.125 grams will remain.
radioactive decay is an exponential decay function.

Source:
http://www.1728.org/halflife.htm


Sedaia [141]2 years ago
3 0

Answer:

b

Step-by-step explanation:

You might be interested in
Lynn bought a bag of grapefruit, 1 5/8 pounds of apples, and 2 3/16 pounds of bananas. The total weight of her purchase was 7 1/
Vitek1552 [10]
I think the bag of grape fruit weigh about 1 3/4

8 0
3 years ago
Read 2 more answers
If you have $20,000 in assets and $50,000 in liabilities, what is your net worth?
Irina-Kira [14]
Answer is 30,000 ......................................
4 0
3 years ago
Read 2 more answers
What is the change from -9 to -1?.
jarptica [38.1K]

Answer:

Positive 8

Step-by-step explanation:

Since they're both negative numbers and it went from -9 to -1, you had to have added a positive number to get a lesser negative number. To put it simply, if you were to subtract 8 from 9, you'd get 1.

5 0
3 years ago
Which expression is NOT equal to 28?
Temka [501]

Answer:

aaaaa

Step-by-step explanation:

5 0
2 years ago
Read 2 more answers
Verify if 1/2x-2 and g(x) = 2x + 4 are inverses
Triss [41]
They are inverses if f( (g(x)) = x

f((g(x)) =  (1/2) (2x + 4) - 2  = x + 2 - 2 = x

so this proves that g(x) is the inverse of f(x)

the other inverse g((f(x))  should also be = x
5 0
2 years ago
Other questions:
  • Which of the following graphs is described by the function given below? y=x^2-6x-7
    12·1 answer
  • Members of a community center are planning a field trip to the zoo. More than 50 people will go on the trip. Ten people are prov
    11·1 answer
  • In 3 hours , a car travels 120 miles. What’s is the speed of the car?
    15·2 answers
  • Use elimination to solve only number 7
    8·1 answer
  • HELPPP how do i write an exponential function?!
    15·1 answer
  • Write the English phrase as an algebraic expression. Then simplify the expression. Let x represent the number. Six times the sun
    5·1 answer
  • Solve for x: 7x-3/5x-2 = -2​
    13·1 answer
  • Candace bought 5 magazines. Her total bill came to $8.75. If all the magazines cost the same amount, what was the cost of one ma
    13·1 answer
  • Jeremiah and family flew 547 miles on christmas eve last year this year they flew 1,328 miles how many miles did jeremiah fly in
    9·2 answers
  • What is the measure of this line?<br> 80 mm<br> 840mm<br> 84mm<br> 80.4 mm
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!