Help plss were are the geniesus need help badly

What value of x will make the triangles similar by the sss similarity theorem?

Find the cosine function that is represented in the graph.

Suppose sat writing scores are normally distributed with a mean of 497 and a standard deviation of 109. a university plans to award scholarships to students whose scores are in the top 2%. what is the minimum score required for the scholarship? round your answer to the nearest whole number, if necessary.