What is the value of the expression two less than six times the difference of a number and five" when n = 9?

Can (2,3 and square root 10) be sides ona right triangle?

Which of the following expressions is equal to 2x^2+8

The numbers on a football field indicate 10 yard increments. you walk around the perimeter of a football field between the pylons. you walk a distance of 30623 yards. find the area and perimeter of the indicated regions. write your answers as mixed numbers, if necessary. a. one end zone: perimeter: yd area: yd2 b. the playing field (not including end zones): perimeter: yd area: yd2 c. the playing field (including end zones): perimeter: yd area: yd2