Find the circumference of a circle with a diameter of 20 inches.
2 answers:
The circumference of a circle can be found with this equation:
C = 2r
"r" is the radius, which is half of the diameter.
The diameter is 20.
20 ÷ 2 = 10
Your radius is 10. Now that you know the radius, you can plug it into the equation:
C = 2r
C = 2(10) Multiply 2 and 10 together
C = 20
Your circumference is:
20 inches or 62.8318530718 inches(you should round it if you want lol)
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Answer:
V' = -0.11552 *V\\= -0.11552(1.8)\\ \\=-0.20794 million per year
Step-by-step explanation:
Given that oil is pumped continuously from a well at a rate proportional to the amount of oil left in the well. Initially there were 3 million barrels of oil in the well; six years later 1,500,000 barrels remain.
i.e. if V stands for volume of oil, then
To find A and k
V(0) = A = 3 million
Hence V =
V(6) = 1.5
i.e.
a) Using the above value of k , we have
million per year.