Determine the value of the variable in the simplified expressions. What is the value of x in this simplified expression? (Negative j) Superscript negative 7 = StartFraction 1 Over (negative j) Superscript x EndFraction x = What is the value of y in this simplified expression? k Superscript negative 5 + m Superscript negative 10 = StartFraction 1 Over k Superscript y EndFraction + StartFraction 1 Over m Superscript 10 EndFraction y =

Elizabeth claims that the fourth root of 2 can be expressed as 2^m since (2^m)^n = 2. find the values of m and n for the case where elizabeth's claim is true.

Solve each quadratic equation by factoring and using the zero product property. n^2 - 49 = 0

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