The stratum corneum is made mostly of dead, keratinized cells.

Identify and name all of the functional groups on this chemical (caffeine).

or the typing option….  Draw: 3-methylpentanal

name this structure  

In case drawing isn’t working/ you don’t like it… describe or write the condensed formula for  3-ethyl -2-hexanol

In case you need to describe…. The oxidation of this alcohol. 

Draw: 3-ethyl -2-hexanol https://jspaint.app/#local:9f1d8491696e6  

Predict (draw or describe) the major product formed by the hydration (adding water) of 1-pentene. https://jspaint.app/#local:9f1d8491696e6  

HP1 HP2 HP3 TW SW1 SW2 SW4 A 1 5 4 B 2 5 4 A utility matrix representing ratings of movies on an 1-5 scale Calculate the normalized rating for user A on item HP1. (Write as fraction, for e.g. 1/2, if negative then -1/2) _______ Calculate the normalized rating for user A on item TW. (Write as fraction, for e.g. 1/2, if negative then -1/2) _______ Calculate the normalized rating for user B on item TW. (Write as fraction, for e.g. 1/2, if negative then -1/2) _______ Calculate the normalized rating for user B on item SW2. (Write as fraction, for e.g. 1/2, if negative then -1/2) _______

We want to calculate the predicted rating for U3 on item I2 (using the Pearson correlation) Select all users that will be considered for calculation: