Hospital Noise Levels Noise levels at various area urban hospitals were measured in decibels. The mean noise level in 161 ward areas was 54.6 decibels, and the population standard deviation is 4.3. Find the 95% confidence interval of the true mean. Round your answers to at least one decimal place.

step-by-step explanation:

to find if any function is an inverse of the other, put the first equation in as x in the next one. then simplify and solve. if at the end you get the statement y = x, then it is an inverse. if you get anything else, it is not.

answer4 to the second power is 16

and 4 to the third power is 64,

true

step-by-step explanation:

intersecting chords are just lines that intersect. so a line is equal to 180 degrees, so when it is intersected by another chord, then it create supplementary angles, and because the lines cross, vertical angels are also formed.