What must be true in order for P (A or B) = P(A) + P (B)?
2 answers:
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Answer:
18.85 inches.
Step-by-step explanation:
We have been given that the radius of a smaller circle 3 inch. We are asked to find the circumference of smaller circle.
We know that circumference of a circle is equal to , where r represents radius of circle.
Therefore, the circumference of smaller circle is approximately 18.85 inches.
Answer:
About 2.17 feet.
Step-by-step explanation:
Let <em>d</em> represent the diameter of the tire.
Then the circumference of the tire will be:
So, the tire will travel dπ miles after one rotation.
After 775 rotations, the total miles traveled should be 5280 feet. Thus:
Solve for <em>d:</em>
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Approximate:
The circumference of the tire should be about 2.17 feet.