A given set of data with normal distribution has a mean height of 70 inches and a standard deviation of 3 inches. What would be an appropriate height range for 95% of all people in the sample?

Find the value of x for which abcd must be a parallelogram -9-6x x-30

When you are making a circle graph by hand, how do you convert a number for a part into its corresponding angle measure in the circle graph? when you are making a circle graph by hand, what should you do if one of your angle measures is greater than 180°?

Consider the proof. given: segment ab is parallel to line de. prove: what is the missing statement in step 5?