Exercise 16 let ABCD be a square of side 5 cm. let I be the midpoint of (AD)and J that of (BC) 1 prove that IB=IC
2 a) show that ABJI is a rectangle
b) Deduce that AJ=IC
3 let E be the midpoint of (DC) let L be the symmetry of J with respect to C and F be the symmetry of E with respect to C

Simplify 15(x - 4)(x -1)-3(x + 4)(x - 1) with steps

Max recorded the heights of 500 male humans. he found that the heights were normally distributed around a mean of 177 centimeters. which statements about max’s data must be true? a) the median of max’s data is 250 b) more than half of the data points max recorded were 177 centimeters. c) a data point chosen at random is as likely to be above the mean as it is to be below the mean. d) every height within three standard deviations of the mean is equally likely to be chosen if a data point is selected at random.

Dean and karlene get paid to write songs. dean is paid a one-time fee of $20 plus $80 per day. karlene is paid a one-time fee of $25 plus $100 per day. write an expression to represent how much a producer will pay to hire both to work the same number of days on a song.