Answer:
160 ft
Step-by-step explanation:
the length of one side would be √1600 which is 40 so 40• 4 is 160
12 - 3 = 9
3 + 9 = 12
12 - 9 = 3
Consider the given equation is
and one of the 6 in the options is -6.
Given:
The equation is

To find:
The value of x.
Solution:
We have,

Subtracting 3 from both sides, we get


Divide both sides by -2.


Therefore, the value of x is -6.
The mass of radioactive material remaining after 50 years would be 48.79 kilograms
<h3>How to determine the amount</h3>
It is important to note that half - life is the time it takes for the amount of a substance to reduce by half its original size.
Given the radioactive decay formula as
m(t)=120e−0.018t
Where
t= 50 years
m(t) is the remaining amount
Substitute the value of t


Find the exponential value
m(t) = 48.788399
m(t) = 48.79 kilograms to 2 decimal places
Thus, the mass of radioactive material remaining after 50 years would be 48.79 kilograms
Learn more about half-life here:
brainly.com/question/26148784
#SPJ1
Answer:12
Step-by-step explanation: