Answer:
Area = 77.1
Step-by-step explanation:
The are of a right triangle is
our base and height are 6 for both triangles, so we shall find the area of one of the triangles...
multiply this by 2
Now find the area of the whole circle
our radius is 6, therefore:
Finally, subtract the area of the two triangles from the total are of the circle. The difference left over is our answer
Answer:
Lowest acceptable score = 121.3
Step-by-step explanation:
Mean test score (μ) = 115
Standard deviation (σ) = 12
The z-score for any given test score 'X' is defined as:
In this situation, the organization is looking for people who scored in the upper 30% range, that is, people at or above the 70-th percentile of the normally distributed scores. At the 70-th percentile, the corresponding z-score is 0.525 (obtained from a z-score table). The minimum score, X, that would enable a candidate to apply for membership is: