Jake is flying his kite. About how far above his hands,x,is the Kite Round to nearest hundredth
220ft
200ft

91.65 ft

Step-by-step explanation:

(200*200) + (x) = 220*220

40000 + x = 48400

48400 - 40000 = x^2

8400 = x^2

91.65 = x

D. We can be 95% confident that the population mean, mu, is within the margin of error of the sample mean, 22.

Step-by-step explanation:

The confidence interval is determined for an unknown population parameter. This is usually the population mean. It could sometimes be the population standard deviation.

The sample mean is the point estimate for the population mean.

Confidence interval = sample mean ± margin of error

The confidence interval tells how sure we are that the unknown population parameter is within the given calculated boundaries.

Therefore, if population mean = mu and sample mean = 22, then with a 95% confidence interval, the correct option is

D. We can be 95% confident that the population mean, mu, is within the margin of error of the sample mean, 22.