What is a obtuse angle? ​

The mean of a set of data is -3.82 and its standard deviation is 2.31. find the z score for a value of 3.99.

In right ∆abc shown below, the midpoint of hypotenuse ac is located at d and segment bd is drawn. if ab = 12 and bc = 16, then explain why bd = 10. hint: consider what you know about the diagonals of a rectangle.

At your job you're paid $50 per week plus $3 per sale at least how many saled do you need to make in order to have over $250