answer:
center: (-2, 0)
radius: 5
explanation
re write that equation in the form if the standard circle equation
(x - ( -2))^2 + (y - 0)^2 = 5^2
therefore the circle properties are: (a,b) = -2, 0 and the radius is 5
The mean is and standard deviation is . Then the variable .
Use substitution , then the variable .
The probability can be calculated in the following way:
for X=80, and . From the diagram .
Conclusion: if 188 students take the exam, then 188·0.84=157.92 (157) would receive a score above 80
Answer:
26π
Step-by-step explanation:
26π because the formula is πd=circumference