If the radius is 43, find the diameter.
2 answers:
Answer:
Diameter = 86 units
Step-by-step explanation:
What is radius and diameter?
- The radius of a circle is a straight line from the middle of a circle to its perimeter. The diameter of a circle is a straight line that touches the perimeter of the circle, then intersects with the center of the circle, and touches the perimeter of the circle again.
How do we find the diameter?
- The diameter of a circle is twice the radius, so 2 × 43 = 86 units
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Answer:
Step-by-step explanation:
here's the solution :-
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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:
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Answer:
0.6
Step-by-step explanation:
The x increases by 5, while y increases by 3
Lets use the method, which is .
Keep in mind that x goes horizontally along the axis, while y goes vertically on the axis.
So plug the numbers in.
0.6
Hence, the constant proportionality is 0.6.