Here are a circle and a sector of the circle. They each have radius r. Circumference of circle=perimeter of sector. Work out the size of angle x. Give your answer in terms of pi.

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 expression is equal to (f+g)(x)?

F(x) = 2x + 1? h(x) = x – h(x) = x + h(x) = x – 2 h(x) = x + 2