Anyone wanna start a convo?

Find the vertex of the function given below y=x^2-6x+1

In a class, there are 12 girls. if the ratio of boys to girls is 5: 4 how many boys are there in the class

In the given triangle, ∠aed ∼ ∠ abc, ad = 6.9, ae = 7.2, de = 5.2, and bc = 10.2. find the measure of bd and ce. round your answer to the nearest tenth.