The sum of the measures of the interior angles of a polygon is 540 degrees. what kind of polygon is it

Which of the following is true for the relation f(x)=2x^2+1

The sat and act tests use very different grading scales. the sat math scores follow a normal distribution with mean 518 and standard deviation of 118. the act math scores follow a normal distribution with mean 20.7 and standard deviation of 5. suppose regan scores a 754 on the math portion of the sat. how much would her sister veronica need to score on the math portion of the act to meet or beat regan's score?

Given: x - 4x > 0, then the solution set in interval notation is: (-2, 0) true o false