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BlackZzzverrR [31]
4 years ago
15

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

Mathematics
2 answers:
STatiana [176]4 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]4 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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Please help I really need help with this.
aivan3 [116]

The correct answer is B


4 0
4 years ago
Write the following number in scientific notation: .00098
aalyn [17]

Answer:

9.8x10^-4

Step-by-step explanation:

6 0
3 years ago
-1 1/3 divided by 2 2/5
Crazy boy [7]

Answer:

-5/12

Step-by-step explanation:

-1 times 1 is -1 so -1/3

2 times 2 is 4 so 4/5

-1/3 divided by 4/5

to make it easier we will write like this:

-1/3 times 5/4

-1 times 5=-5

3 times 4=12

so the final answer is  -5/12

HOPE IT HELP U

8 0
4 years ago
red paint is 1 and blue paint is 3 how much red is there for each blue? Im low on points so u sadly only get 10
Lesechka [4]

Answer:

1 quart blue + 1 1/2 quart red

Given:

Ratio of blue paint : red paint = 1/3 : 1/2

simplifying this ratio into whole numbers by multiplying both sides by 2 and 3, we get:

(1/3) x (3x2) : (1/2) x (3x2)

2 : 3

From this we can determine the fractions of red and blue paint used in any total purple mix

fraction of blue paint = 2/(2+3) = 2/5 of purple mix

fraction of red paint = 3/(2+3) = 3/5 of purple mix

we are given that we want to make 2 1/2  (= 5/2) quarts of purple paint

hence

amount of blue paint

= fraction of blue paint in purple mix x total amount of purple paint

= (2/5) x (5/2) = 1 quart

amount of red paint

= fraction of redpaint in purple mix x total amount of purple paint

= (3 /5) x (5/2) = 3/2 quart = 1 1/2 quart

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
A picture has a height that is 4 / 3 its width. It is to be enlarged so that the ratio of height to width remains the same, but
Yuri [45]
<h2>Dimensions of enlargement is height is 16 inch and width is 12 inch.</h2>

Step-by-step explanation:

A picture has a height that is 4 / 3 its width.

Let h be the height and w be the width.

Given that

                h=\frac{4}{3}w

Area of picture is given by 192 inch²

            A = 192 inch²

          h x w = 192

     \frac{4}{3}w\times w=192\\\\\frac{4}{3}w^2=192\\\\w^2=144\\\\w=12inch\\\\h=\frac{4}{3}\times 12\\\\h=16inch

Dimensions of enlargement is height is 16 inch and width is 12 inch.      

6 0
3 years ago
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