Answer:
8.5pi
Step-by-step explanation:
We can solve this problem with a rule of three.
The area of the whole circle is represented by a sector with central angle of 2*pi. So, if we want to find the area of a sector that has a central angle of 17pi/9, we can use the following logic:
sector of 2pi -> area equal to 9pi
sector of 17pi/9 -> area equal to X
2pi / (17pi/9) = 9pi / X
18 / 17 = 9pi / X
X = 17 * 9pi / 18 = 17pi / 2 = 8.5pi
Answer:
-2√3+2√15
Step-by-step explanation:
Twenty is 40% of 50 because 10% of 50 is 5 so 5*4 = 20
Answer:
(D) 3, 3, 6
Step-by-step explanation:
The triangle inequality says the sum of the shortest two legs must be longer than the longest. In the case of {3, 3, 6}, the sum is exactly equal to the longest, so the "triangle" will look like a line segment and have zero height and zero area,
Some authors describing the triangle inequality find that to be an acceptable condition. Apparently the author of this question does not.
Answer: Number of intervals in which no occurrence was reported for both observers by the number of intervals in which no occurrence was recorded by at least one observer (x 100)
Step-by-step explanation:
To calculate occurrence, the formula to be used is The Number of intervals in which at both observers recorded no occurrence, divided by the number of intervals in which at least one observer recorded no occurrence (x 100).
This would give us the accurate answer for occurrence.