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BlackZzzverrR [31]
3 years ago
15

In an exponential decay problem involving half-life what does this term mean

Mathematics
2 answers:
STatiana [176]3 years ago
7 0
Exponential decay is normally applied to word problem involving financial applications and those that deals with radioactive decay. Half life informally is the time required for half of a sample/element to disintegrate
gregori [183]3 years ago
5 0

Answer:

a becomes a/2 in exponential decay factor.

Step-by-step explanation:

We have to explain what does half-life mean in exponential decay

The general function of exponential decay is y=a\cdot b^x

Here, a is the initial value

And when the initial value gets half is known as half life in exponential decay

b is the decay factor in the formula

After half-life a becomes a/2

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3/5x + 3 = 6 whats is x?​
KengaRu [80]

Answer:

<h3>X = 3/5 </h3>

3/5x + 3 = 6

3/5x = 6 - 5

3/5x = 1

<h3><u>Multiplying </u><u>both </u><u>the </u><u>sides </u><u>with </u><u>5x </u></h3>

3/5x (5x) = 1* 5x

3 = 5x

3/5 = X

8 0
2 years ago
An owner of a key rings manufacturing company found that the profit earned (in thousands of dollars) per day by selling n number
vovikov84 [41]

Answer:

The number of key rings sold on a particular day when the total profit is $5,000 is 4,000 rings.

Step-by-step explanation:

The question is incomplete.

<em>An owner of a key rings manufacturing company found that the profit earned (in thousands of dollars) per day by selling n number of key rings is given by </em>

<em />P=n^2-2n-3<em />

<em>where n is the number of key rings in thousands.</em>

<em>Find the number of key rings sold on a particular day when the total profit is $5,000.</em>

<em />

We have the profit defined by a quadratic function.

We have to calculate n, for which the profit is $5,000.

P=n^2-2n-3=5\\\\n^2-2n-8=0

We have to calculate the roots of the polynomial we use the quadratic equation:

n=\frac{-b\pm\sqrt{b^2-4ac}}{2a}\\\\n= \frac{-2\pm\sqrt{4-4*1*(-8)}}{2}= \frac{-2\pm\sqrt{4-32}}{2} = \frac{-2\pm\sqrt{36}}{2} =\frac{-2\pm6}{2} \\\\n_1=(-2-6)/2=-8/2=-4\\\\n_2=(-2+6)/2=4/2=2

n1 is not valid, as the amount of rings sold can not be negative.

Then, the solution is n=4 or 4,000 rings sold.

7 0
3 years ago
Two-Step Equations 2/5x−3=−17
Lina20 [59]

Answer:

x =-35

Step-by-step explanation:

2/5x−3=−17

Add 3 to each side

2/5x−3+3=−17+3

2/5x = -14

Multiply each side by 5/2

5/2 * 2/5x = -14 * 5/2

x = -35

3 0
3 years ago
Read 2 more answers
Combine like terms to create an equivalent expression 3.4 - 2.8d + 2.8d - 1.3
zalisa [80]

Answer:

3.4 - 2.8d + 2.8d - 1.3 = 2.1

Step-by-step explanation:

The given expression is 3.4 -2.8d + 2.8d -1.3

Let's see the definition of like terms.

Like terms are the terms having the same variable and the same exponents.

Examples: -3xy, 2xy  and 4y, 5y and -3, 2.

Now let's identify the like terms from the given expression.

3.4 -2.8d + 2.8d -1.3

Here the like terms are -2.8d, +2.8d and 3.4, -1.3

3.4 -2.8d + 2.8d -1.3

= -2.8d + 2.8d + 3.4 - 1.3            [-2.8d + 2.8d = 0] and 3.4 -1.3 = 2.1

= 0 + 2.1

=2.1

The answer is 2.1

6 0
2 years ago
Read 2 more answers
10. Alice Nako's monthly credit card statement has a previous balance of
olga2289 [7]
307.85
-40
-9.50
-41.75
+23.75
-4.62
=235.73$
3 0
3 years ago
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