In the gym , there is a scale that measures people weight . the needle is 22 cm long , and it roared 124 when evelyn stepped on it . how far did needle travel as it rotated.

Describe in detail how you would construct a 95% confidence interval for a set of 30 data points whose mean is 20 and population standard deviation is 3. be sure to show that you know the formula and how to plug into it. also, clearly state the margin of error.

Which of the following lines does not intersect the line y=-2x+3 ? a) y=2x b) y=2x-3 c) y=2x+3 d) y=-2x-3

What is x3+3x2−16x−48 divided by x−1?