Answer:
.25881
Step-by-step explanation:
sin15
=sin(45-30)
=sin45.cos30-cos45.sin30
=(0.707×0.86)-(0.707×0.5)
=(0.6082)-(0.3535)
=0.25
<h3>
Answer: 45 degrees</h3>
Explanation:
There are n = 8 sides in a regular octagon. The smallest angle of rotational symmetry is 360/n = 360/8 = 45 degrees. Rotating this amount will not change the regular octagon. The before and after will look identical.
Answer:
Step-by-step explanation:
Estimation, 11. ... State the mean and variance of the sampling distribution of the mean ... distribution of the mean is the population variance divided by N, the sample ... (optional) This expression can be derived very easily from the variance sum ... The standard error is represented by a σ because it is a standard deviation.
