Work out the area of this semi circle take pie to be 3.142 and write down all the digits given by your calculater 11cm

The number of hours per week that the television is turned on is determined for each family in a sample. the mean of the data is 37 hours and the median is 33.2 hours. twenty-four of the families in the sample turned on the television for 22 hours or less for the week. the 13th percentile of the data is 22 hours. approximately how many families are in the sample? round your answer to the nearest integer.

An arc subtends a central angle measuring 7pi/4 radians what fraction of the circumference is this arc?

2. explain in words how you plot the point (4, −2) in a rectangular coordinate system.