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
enyata [817]
3 years ago
10

Initially 100 milligrams of a radioactive substance was present. After 6 hours the mass had decreased by 2%. If the rate of deca

y is proportional to the amount of the substance present at time t, find the amount remaining after 24 hours. (Round your answer to one decimal place.
Mathematics
1 answer:
LenaWriter [7]3 years ago
4 0

The amount of radioactive material remaining after 24 hours is 92.15 kg.

<h3>Exponential function</h3>

An exponential function is in the form:

y = abˣ

where y, x are variables, a is the initial value of y and b is the multiplier.

Let y represent the amount of the substance after t hours.

From the equation, a = 100 mg

Also, after 6 hours:

100-100*2\%=100b^6\\\\98=100b^6\\\\b=0.9966

After 24 hours:

y = 100(0.9966)²⁴ = 92.15 kg

The amount of radioactive material remaining after 24 hours is 92.15 kg.

Find out more on Exponential function at: brainly.com/question/12940982

You might be interested in
How do you know if a square root of something is rational or irrational? like i know it can be represented by a fraction or a ra
ra1l [238]
The square root of a whole number will be rational if the whole number is a perfect square (i.e 1, 4, 9, 16, 25, 36, 49, 64, 81, 100, 121, 144 etc) and irrational otherwise.

Rational number is a number that can be described as m/n 

so a fraction can be a rational number, 0.8=4/5 
Irrational numbers can't be written as a fraction 

The part about the number having to be a perfect square is still correct, if it's not a prefect square than it will just keep going(a decimal that never ends) 

for example the square root of 0.64 is 0.8 
and the square root of 10 is 3.162277... 
as you can see the 0.64 one ends and is rational, whereas the 10 one just keeps going and is irrational.
5 0
3 years ago
I do not get this question
inna [77]
35%

Explanation:

The overall percentage must add up to 100%

Because of this...

100% (total) - 49% (swimming) = 51%

51% - 16% (biking) = 35% (rollerblading)
8 0
3 years ago
Read 2 more answers
Solve this inequality:
Arturiano [62]

Answer:

x > -6.

Step-by-step explanation:

16x - 33x < -12x + 30

Add 12x to both sides:

16x - 33x + 12x < 30

-17x + 12x < 30

-5x < 30

x > 30/-5

x > -6

(Note the inequality signs flips because we are dividing by negative 5).

3 0
3 years ago
What is 4x=8 thanks ;)
Reika [66]

Answer:

x=2

Step-by-step explanation:

4x=8

4x/4= 8/4 Divide both side by four to find x

8/4= 2 which equals x

3 0
3 years ago
Read 2 more answers
Identify the zeros of the following function. f(h)=h(h-2)(2h-1)
Rina8888 [55]
{0, 2, 1/2}

f(h) = 0 when any set of parenthesis equals zero

1. h = 0

2. h - 2 = 0
add 2
h = 2

3. 2h - 1 = 0
Add 1
2h = 1
divide by 2
h = 1/2
5 0
3 years ago
Other questions:
  • Rita wrote an inequality for each statement. Select all statements whose inequality is an incorrect representation of the statem
    14·1 answer
  • Write the number in standard and expanded form. 304,800,400
    11·1 answer
  • The sides of the playground are 33 meters and 24 meters. what is the value of z?
    8·2 answers
  • PLEASE PLEASE HELP ME
    13·2 answers
  • There are 45 female performers in a dance recital. The ratio of men to women is 7:9. How many men are in the dance recital? Ther
    12·2 answers
  • 4√2 divided by the square root of 2​
    11·1 answer
  • "
    7·1 answer
  • The product of 9 upon 7 and a number is 63. Find the number​
    6·1 answer
  • Help find X:_,_ Y:_,_
    15·1 answer
  • Quick Fix Inc. repairs bikes. The company’s revenue is modeled by the function R(h)=220h-160 for the every h hours spent repairi
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!