1157/500 is as simple it can be as a fraction .
The answer to this question is true. The equation (x-h)^2+(y-k)^2 = r^2 represents a circle with a center at (h,k). Taking (h,k) = (-2,2) and r = 3 results in (x+2)^2 + (y-2)^2 = 9. A negative subtracted by a negative is a positive.
Answer:
437 ft
Step-by-step explanation:
That is the answer
Answer:
95% confidence interval for the mean weight of newborn elephant calves is between a lower limit of 240.87 pounds and an upper limit of 247.13 pounds.
Step-by-step explanation:
Confidence Interval = mean + or - Error margin (E)
mean = 244 pounds
sd = 11 pounds
n = 50
degree of freedom = n - 1 = 50 - 1 = 49
Confidence level = 95%
t-value corresponding to 49 degrees of freedom and 95% confidence level is 2.010
E = t×sd/√n = 2.010×11/√50 = 3.13 pounds
Lower limit = mean - E = 244 - 3.13 = 240.87 pounds
Upper limit = mean + E = 244 + 3.13 = 247.13 pounds
95% confidence interval is between 240.87 and 247.13 pounds.
