Em_Went

Which statement explains the energy exchange in a clock's pendulum?(1 point) Responses When the pendulum swings upward, it gains potential energy that is changed to kinetic energy as it swings downward. When the pendulum swings upward, it gains potential...

How many real-number solutions does the equation have? 0 equals 2 x squared minus 20 x plus 50 A. two solutions B. one solution C. no solutions D. infinitely many solutions

Use the quadratic formula to solve the equation. If necessary, round to the nearest hundredth. x squared minus 21 x equals negative 4 x A. 7, 3 B. negative 7, 3 C. 7, negative 3 D. negative 7, negative 3