If tan e = 13. what is the value of cot(90° - 9)?
a 13
b. -13
c.
d
3
-3

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?

The number if marbles of different colors stored in a hat is listed below: 4 red marbles 10 green marbles 7 blue marbles. without looking in the hat, dan takes out a marble at random. he replaces the marble and then takes out another marble from the hat. what is the probability that dan takes out a blue marble in both draws?

I'm a polygon i have no parallel lines i am formed 3 line segments i have one right angle two of my angles are angles what am i