Alabama instruments company has set up a production line to manufacture a new calculator. the rate of production of these calculators after t weeks is given by the formula below. (notice that production approaches 6000 per week as time goes on, but the initial production is lower because of the workers' unfamiliarity with the new techniques.)

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?

Given: △acm, m∠c=90°, cp ⊥ am , ac: cm=3: 4, mp-ap=1. find am.

The difference of three and the reciprocal of a number is equal to the quotient of 20 and the number. find the number.