What value in place of the question mark makes the polynomial below a perfect square trinomial? X^2+22x+?

Name the most appropriate metric unit for each measurement

Point b lies between points a and c on . let x represent the length of segment ab in inches. use the segment to complete the statements. the value of x is . the length of in inches is . the length of in inches is .

The interior angles formed by the sides of a hexagon have measures that sum to 720°. what is the measure of angle a? enter your answer in the box. m∠a= °