Express in terms of the related reference angle. ex. cos 153 degrees= -cos 27 degrees

1. sin 132 degrees
2. cos 310 degrees
3. tan 148 degrees
4. cos 195 degrees

Let the mean of the population be 38 instances of from 6" - 9" hatchings per nest, and let the standard deviation of the mean be 3. what sample mean would have a confidence level of 95% or a 2.5% margin of error?

Which is the completely factored from of xy^3-x^3y

Urgent? will give brainliest to the first correct answer what is the area of the figure?