The average miles per gallon of a particular automobile model are approximately normally distributed with a given mean = 43. 8 miles per gallon and standard deviation = 5. 1 miles per gallon. What percentage of the automobiles have an average miles per gallon between 38. 7 miles per gallon and 48. 9 miles per gallon? 68% 75% 95% 100%.

Did the universe cool off or get hotter as it expanded after the 'big bang"?

Luminous objects such as flashlights emit light that we can see. how do we see an object that isn’t luminous? a. the object emits light that reaches our eyes. b. light reflects off the object and reaches our eyes. c. light passes through the object uninterrupted. d. light is fully absorbed by the object. e. we can’t see an object that isn’t luminous.

Essay questions may also be referred to as a. talk questions c. hard questions b. explain questions d. think questions