Calculate the missing angle and give a reason for your answer.

Which of the following represents the length of a diagonal of this trapezoid?

The function f(x)= x5+ ( x + 3)2 is used to create a table. if x = -1 then what is f(x)?

Dana wants to identify the favorite professional baseball team of people in her community. she stands outside a local sporting goods store and asks every other person who enters, "what is your favorite professional baseball team? " will the results of her survey be valid? explain.