82.5820063 if you do that with straight math
Answer: The main purpose he has for writing this is that the cloaning of humans can be done but it is also very hard to do.
Explanation: But every previous attempt ended in failure or fraud, leading many scientists to wonder if the goal might be impossible to reach.
<h3>
Answer: D) 4</h3>
===========================================================
Explanation:
The width of the confidence interval is 20-12 = 8 units. That cuts in half to get 8/2 = 4 which is the margin of error.
The center of the confidence interval is (12+20)/2 = 32/2 = 16. Add four onto this to get 16+4 = 20, which is the right endpoint. Subtract four from the center to get 16-4 = 12, which is the left endpoint.
Effectively, it's like saying "an archer aims for the value 16 on the number line, and the arrow could land as high as 20 or as low as 12".
If one hand is at 12 and the other is at 3, then it forms a 90-degree angle.
