Radio signals travel at a rate of 3x10^8 meters per second. how many seconds would it take for a radio for a signal to travel from a satellite to the surface of earth if the satellite is orbiting at a height of 4.2x10^7 meters? (hint: time is distance divided by rate.) a. 1.26x10^16 seconds b. 1.26x10^15 seconds c. 1.4x10^1 seconds d. 1.4x10^-1 seconds

(01.03 mc) which of the following is a step in simplifying the expression x multiplied by y to the power of 2 over x to the power of negative 3 multiplied by y to the power of 3, the whole to the power of negative 4. select one: a. x to the power of negative 4 multiplied by y to the power of negative 2, the whole over x to the power of negative 7 multiplied by y to the power of negative 1. b. x to the power of negative 4 multiplied by y to the power of negative 8, the whole over x to the power of 12 multiplied by y to the power of negative 12. c. x to the power of negative 4 multiplied by y to the power of negative 8, the whole over x to the power of negative 3 multiplied by y to the power of 3. d. x to the power of negative 4 multiplied by y to the power of negative 2, the whole over x to the power of negative 3 multiplied by y to the power of 3.