50 is not a perfect square because it does not have a perfect square root where as 49 is 7, 121 is 11, and 1 is 1
Answer:
i would say the answer is (b) 40
Step-by-step explanation:
Answer:
4a/5
Step-by-step explanation:
(a+a+a+a) / 5
Combine like terms
4a/5
Answer:
Almost every question you ask can and will be answered if asked in a right why
Step-by-step explanation:
Confidence interval = mean ± margin of error
CI = μ ± ME
The mean is μ = 8.7.
Margin of error = critical value × standard error
ME = CV × SE
At 95% confidence and 9 degrees of freedom, CV = 2.262.
SE = s / √n
SE = 3.3 / √10
SE = 1.04
The margin of error is:
ME = 2.262 × 1.04
ME = 2.36
CI = 8.7 ± 2.36
CI = (6.34, 11.06)
