Some steps to rewrite the expression x3 - 16x + x2 - 16 as a product of three factors are shown below: step 1: x3 - 16x + x2 - 16 step 2: x3 + x2 - 16x - 16 step 3: x2(x + 1) - 16(x + 1) which of the following best shows the next two steps to rewrite the expression?
a. step 4: (x2 + 16)(x + 1); step 5: (x + 4)(x + 4)(x + 1)
b. step 4: (x2 - 16)(x + 1); step 5: (x + 4)(x + 4)(x + 1)
c. step 4: (x2 - 16)(x + 1); step 5: (x - 4)(x + 4)(x + 1)
d. step 4: (x2 + 16)(x + 1); step 5: (x - 4)(x + 4)(x + 1)

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The school track has eight lanes. each lane is 1.25 meters wide. the arc at each end of the track is 180. the distance of the home straight and the radii for the arcs in the 1st 4 lanes are given. s=85m r1=36.5m r2=37.75m r3=39m r4=40.25m part one: find the radii of lanes 5 through 8 of the track. show your work. part two: if max ran around lane one, how far did he run? show your work and explain your solution. part three: max wants to run a total of three laps around the track, choose two additional lanes (2-8) for him to run and find the distance around those two lanes. show your work and round to the hundredths. part 4: based on your lane choices in part three, what was the total distance max ran in the three laps around the track?

Select the correct answer from each drop-down menu. james needs to clock a minimum of 9 hours per day at work. the data set records his daily work hours, which vary between 9 hours and 12 hours, for a certain number of days. {9, 9.5, 10, 10.5, 10.5, 11, 11, 11.5, 11.5, 11.5, 12, 12}. the median number of hours james worked is . the skew of the distribution is