The national average for mathematics on a standardized test in 2011 was 524. suppose that the

distribution of scores was approximately bell-shaped and that the standard deviation was

approximately 41. round your answers to one decimal place as needed.

part 1 out of 2

within what boundaries would you expect 95% of the scores to fall?

about 95% of the scores should fall between

and

as

You will get 25 points an image of a rectangular prism is shown below: part a: a cross section of the prism is cut with a plane parallel to the base. what is the name of the shape created by the cross section? explain your answer. (5 points) part b: if a cross section of the prism is cut perpendicular to the base, what would be the shape of the resulting cross section? explain your answer. (5 points)

The graph of y = ax^2 + bx + c is a parabola that opens up and has a vertex at (0, 5). what is the solution set of the related equation 0 = ax%2 + bx + c?

If sr is 4.5cm and tr is 3cm, what is the measure in degrees of angle s?