2) The tip of a pendulum is i na state of rest, hanging from point P. During an experiment, a physics student sets the pendulum in motion. The tip of the pendulum swings back and forth. The tip swings
from point L to point N. During each swing, the tip passes through point M. Name all the angles in
the diagram

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.

Imogene invested $8,000 in a bank account that pays 8 percent simple interest at the end of each year. her friend invested the same amount in stocks where the growth of the investment is represented as 2,000 times the square root of 2 less than the time lapsed in years. if y1 and y2 represent the amount earned in dollars and t is the time lapsed in years, which system of equations correctly represents the situation?

Find the difference (8ab+a+2) - (3ab+6)