PLEASE HELP 30 POINTS!! Write a matrix that correctly displays the total number of students participating in these activities for the two high schools?

1. are the triangles similar and if so why? what is the value of x? show your work.

The lengths of nails produced in a factory are normally distributed with a mean of 4.91 centimeters and a standard deviation of 0.05 centimeters. find the two lengths that separate the top 4% and the bottom 4%. these lengths could serve as limits used to identify which nails should be rejected. round your answer to the nearest hundredth, if necessary.

[15 points, algebra 2]simplify the complex fraction and find the restrictions.