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almond37 [142]
2 years ago
5

REWARDING BRAINLY TO CORRECT ANSWER

Mathematics
2 answers:
Jlenok [28]2 years ago
5 0

Answer:

D

Step-by-step explanation:

Add them all then divide the amount of numbers added.

nadezda [96]2 years ago
4 0

Answer:

It’s 19

Step-by-step explanation:

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The half-life of radium-226 is 1600 years. Suppose we have a 27-mg sample.
slega [8]

A function m(t)= m₀e^(-rt) that models the mass remaining after t years is; m(t) = 27e^(-0.00043t)

The amount of sample that will remain after 4000 years is; 4.8357 mg

The number of years that it will take for only 17 mg of the sample to remain is;  1076 years

<h3>How to solve exponential decay function?</h3>

A) Using the model for radioactive decay;

m(t)= m₀e^(-rt)

where;

m₀ is initial mass

r is rate of growth

t is time

Thus, we are given;

m₀ = 27 mg

r = (In 2)/1600 = -0.00043 which shows a decrease by 0.00043

and so we have;

m(t) = 27e^(-0.00043t)

c) The amount that will remain after 4000 years is;

m(4000) = 27e^(-0.00043 * 4000)

m(4000) = 27 * 0.1791

m(4000) = 4.8357 mg

d) For 17 mg to remain;

17 = 27e^(-0.00043 * t)

17/27 = e^(-0.00043 * t)

In(17/27) = -0.00043 * t

-0.4626/-0.00043 = t

t = 1076 years

Read more about Exponential decay function at; brainly.com/question/27822382

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1 year ago
How is experimental probability used to make predictions?
Oksana_A [137]

Experimental Probability is use to help make predictions by using materials that relate to the that probability so see if it could happen in real life.

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8 0
3 years ago
The set of all integers between -100 and 100?
Morgarella [4.7K]

[-100, -99, -98, -97, -96, 95, -94 .... 94, 95, 96, 97, 98, 99, 100]

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3 years ago
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¿Qué representa 34?<br>​
kogti [31]

Answer:

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Step-by-step explanation:

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2 years ago
What is the surface area of a cone with a radius of 15 and a height of 8
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