A student named Rachel wrote the vertex equation for a quadratic function with a vertex at (-7, -6) and an a value of 4. vertex form: y =a(x-k)^2 +h. (h, k) = (-7,6) a = 4. this is not correct. explain the mistakes.

Select the correct answer. joshua likes to read. he read 6 books when he was 6 years old. every year he doubled the number of books he read the previous year. how many total books did he read between the ages of 6 and 10? a. 60 b. 90 c.186 d.187

Convert the mixed numbers into improper fractions. convert the improper fraction to mixed numbers.

Given right triangle a w/a hypotenuse length of x+4 and a leg of x, and right triangle b, w/ a hypotense length of 3y and a leg length of y+4 for what values of x and y are the triangles congruent by hl?