Answer:
its B, 90
Step-by-step explanation:
thats a right triangle so the r angle is 90
Answer:
That would be A) -3/5.
Step-by-step explanation:
Here it is.
,Answer:
I got -30
Step-by-step explanation:
Becuase when I did 5 x 2= 10
and 10 -40 = -30
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)