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Licemer1 [7]
2 years ago
11

Explain what exponential decay is

Mathematics
2 answers:
Basile [38]2 years ago
5 0

A function in which the dependent variable decreases by the same factor over each unit of time

VARVARA [1.3K]2 years ago
5 0

A quantity X follows an exponential decay (decrease) if it decreases at a rate proportional to its current value. This can be written as

X(t) = X_0 e^{-at}

with t being the time (can be continuous or discrete steps), and "a" being a rate of decay (the larger "a" the faster the decay). X0 is an initial (at time 0) value of the quatity X. Exponential decay is seen frequently in nature (radioactivity, chemical reactions) and economics.


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Solve each of the quadratic equations.<br><br> 3x=0.5x^2 <br><br><br> 0=5x^2-2x+6
Kipish [7]

Answer:

6x=0.10x< 2

Step-by-step explanation:

8 0
3 years ago
Please help me i would really appreciate it, worth 11 points
nalin [4]

The number of seconds it takes for the waste to hit the ground for the given function is: 5 seconds.

<h3>How to Evaluate a Function?</h3>

We are given the function of height to time as, h(t) = -16t² + initial height, and we have the following:

  • h(t) = 0 (height of the ground is 0)
  • t = seconds the waste takes to height the ground
  • Initial height = 400 feet

Plug in the values into the equation of the function

0 = -16t² + 400

Solve for t

0 - 400 = -16t²

-400 = -16t²

-400/-16 = t²

400/16 = t²

√(400/16) = t

20/4 = t

5 = t

t = 5

The number of seconds it takes is: 5 seconds.

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7 0
2 years ago
Five times a number added with 18 is equal to 48 . What is the number
nevsk [136]

Answer:

6

Step-by-step explanation:

Number = x

5x + 18 = 48

5x = 30

x = 6

6 0
3 years ago
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x + y = 75. The equation relates the number of minutes, x, Maria spends running each day and the number of minutes, y, she spend
Delvig [45]

75 represents the total minutes spent running and biking

<h3>How to interpret the equation?</h3>

The given parameters are:

  • x = number of minutes spends running
  • y =number of minutes biking

The equation is given as:

x + y = 75

The above means that when the minutes spent running and the minutes spent biking are added, the total is 75

Hence, the 75 represents the total minutes spent running and biking

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4 0
2 years ago
Need help on this please
LenaWriter [7]

Answer:

15 business class and 12 economy class

Step-by-step explanation:

15 + 12 = 27

15 * 700 = 10500

12 * 375 = 4500

$10500 + $4500 = $15,000

5 0
3 years ago
Read 2 more answers
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