John purchased 13792 kWh of electricity and 2284 CCF of natural gas in a year. The cost of electricity is 6.4 cents/kWh and that of natural gas is 1.7 dollars per CCF. Assuming that 1 CCF of natural gas has 100,000 BTUs and 1 kWh has 3412 BTUs, what is the average cost of 1 MMBTUs for John.

When an object moves in uniform circular motion, the direction of its acceleration is a) in the same direction as its velocity vector. b) in the opposite direction of its velocity vector c) is directed toward the center of its circular path. d) is directed away from the center of its circular path. e) depends on the speed of the object.

Current enters a circuit at a: 1.positive terminal 2.negative terminal 3.low potential side 4.resistor

Explain the difference between each pair of concepts. a. frequency and relative frequency b. percentage and relative frequency a. select the correct choice below. a. frequency is the total number of observations in a data set. relative frequency is the number of times a particular distinct value occurs. b. frequency is the number of times a particular distinct value occurs. relative frequency is the ratio of the frequency of a value to the total number of observations. c. frequency is the total number of observations in a data set. relative frequency is the ratio of the number of times a particular distinct value occurs to the frequency. d. frequency is the number of times a particular distinct value occurs. relative frequency is the ratio of the frequency of two different values.