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nignag [31]
3 years ago
11

PLEASE Help with number 14

Mathematics
1 answer:
scZoUnD [109]3 years ago
8 0

14) The sum of anything and its additive inverse is zero. (That is the definition of additive inverse.) The appropriate choice is ...

... A) equal to 0

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How many inches are in 14 feet
GarryVolchara [31]

Answer:

168 inches are in 14 feet

Step-by-step explanation:

There are 12 inches in a foot. 12 * 14 = 168.

4 0
2 years ago
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The difference of 5 times y and 3
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The way to find the difference between 5y - 3 you have to first do the inverse operation of multiplication which is division.

                5y - 3
                __   __
                5      5

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3 0
3 years ago
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

#SPJ1

5 0
1 year ago
Absolute value of -4 1/2
iragen [17]

Answer: 4 1/2

Step-by-step explanation:

4 0
3 years ago
Not sure if my answers correct, Please help quick math question asap! ty
Varvara68 [4.7K]

To find the inverse we swap y and x and solve for y:


x = 9y + 15


x - 15 = 9y


y = (x-15)/9


Last choice


8 0
3 years ago
Read 2 more answers
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