Which is a perfect square?

.121
140
168
195

The triangles are similar. what is the value of x? x=

Which is f(5) for the function –2x2 + 2x - 3?

Given the quadratic function f(x)=3x^2-24x+49 a. use “completing the squares” to convert the quadratic function into vertex form b. state the vertex c. find the x and y intercepts d. graph the function