18. A ship is heading due west at a steady speed of 15 km/h. A current of 3 km/h is running due south. Calculate the velocity of the ship relative to the seabed.

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.

Which of the following is not am example of a polymer? protein nylon kevlar concreta

Science and technology are interdependent. advances in one lead to advances in the other. give an example of this phenomenon.