Joan’s washing machine tub is a cylinder with a height of 17 in. and a diameter of 22 in. her washer was half full of water when it stopped working. the repair person’s pump removed 46.2 in3 of water every second. how many seconds did it take to empty the washer? use 3.14 to approximate pi, and round your answer to the nearest whole number.
a.
70 s
b.
140 s
c.
280 s
d.
559 s

Lems1. the following data set represents the scores on intelligence quotient(iq) examinations of 40 sixth-grade students at a particular school: 114, 122, 103, 118, 99, 105, 134, 125, 117, 106, 109, 104, 111, 127,133, 111, 117, 103, 120, 98, 100, 130, 141, 119, 128, 106, 109, 115,113, 121, 100, 130, 125, 117, 119, 113, 104, 108, 110, 102(a) present this data set in a frequency histogram.(b) which class interval contains the greatest number of data values? (c) is there a roughly equal number of data in each class interval? (d) does the histogram appear to be approximately symmetric? if so,about which interval is it approximately symmetric?