The computer sums the first four digits of a customer number to calculate the value of the fifth digit and then compares that calculation to the number typed during data entry. this is an example of a:

The great length of north america causes the climate to be varied. true false

Hazel has just finished adding pictures to her holiday newsletter. she decides to crop an image. what is cropping an image?

Click the "draw structure" button to activate the drawing utility. draw two diastereomers of (1z,4r)−1,4−dimethylcyclodecene and name them, including (e)/(z) and (r)/(s) notation. part 1 out of 4 draw the diastereomer containing a chiral center with s configuration here. window open