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
LenKa [72]
4 years ago
15

A radioactive substance decays exponentially. A scientist begins with 130 milligrams of a radioactive substance. After 24 hours,

65 mg of the substance remains. How many milligrams will remain after 45 hours?
Mathematics
1 answer:
Sati [7]4 years ago
4 0
N(t)=N∗.5t/h where n(t) is amount of substance left, N = initial amount, t = current time, and h = half-life time.h = 24 hours t= 45 hours, N = 130mg
therefore, N(t)=130∗.545/24=35.44mg
You might be interested in
Is the answer for this question is 35?
USPshnik [31]

Answer:

yep :)

Step-by-step explanation:

7 0
4 years ago
Read 2 more answers
What is the mean for the following set of data?
lubasha [3.4K]
#1 )8 is the answer ...
6 0
3 years ago
Read 2 more answers
Match the terms to their definition. 1. radical expression eliminate the radical from the denominator of a fraction 2. rationali
Vesnalui [34]
radical expression - an expression that contains a radicalrationalize - eliminate the radical from the denominator of a fractionradicand - the expression under a radical symbolrational number - a number that can be written as a ratio of two integers in the form a/b where b does not equal 0
6 0
3 years ago
Read 2 more answers
Norma bought 1 3/4 yards of cotton fabric and 3 3/8 yards of fleece fabric.
aalyn [17]
1 3/4 + 3 3/8 
get a common denominator by multiplying 1 3/4 by 2 to get a denominator of 8
1 3/4 becomes 1 6/8
1 6/8 + 3 3/8 = 5 1/8 yards
so the answer is 
C. 5 1 / 8 Yards
4 0
4 years ago
Read 2 more answers
Help needed asap deadline is approaching
antiseptic1488 [7]
Your answer will be f(x) = 5 because, if we look at the table, no matter what x value we plug into the function, we will always get 5.
8 0
3 years ago
Other questions:
  • Dr. Goodrich wanted to demonstrate that his tires were better than those of his competitor, Dr. Goodyear. From car registration
    5·1 answer
  • 3.7 divided by 1.1 round to the nearest hundredth
    11·1 answer
  • at age 27, jill deposited $4,000 into an ira, where it earns 9.8% interest compounded monthly. what will it be worth when she is
    12·1 answer
  • What is the value of x in the figure above? ^^
    15·1 answer
  • PLZZZ HELP ME.I WOULD RLLY APPRECIATE IT
    6·1 answer
  • Hi wyddddddddddddddddddd hmu i dont care if i get reported
    10·2 answers
  • To save for the purchase of a new car, a deposit was made into an account that earns 8% annual simple interest. Another deposit,
    11·1 answer
  • What does 1/4 plus 2/5 equals? Simplify your answer, if possible. 5th grade math.
    10·2 answers
  • To get ready for school supply shopping, a store orders 25,000 folders. The store gets another shipment of 15,250 folders the da
    5·1 answer
  • 500.000.000 written in scientific notation?​
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!