In how many ways can you fill three different positions by choosing from 15 different people? a. 3 · 2 · 1 b. 15 · 14 · 13 c. 15 · 14 · 12 · 3 d. 15 · 3 its algebra 2!

C. Because

When the seats are empty, there are a total of 15 people that can posibly sit in there. We will only let 1 person sit on a chair. 

When the 1st seat is taken there are now 14 people who can possibly sit on another chair. Same goes when 2 seaats are taken. 

To find the total number of possibilities, we multiply together the possible number of people for seat 1, seat2, and seat 3. 

Or, if we use stat, nPr = n! / (n-r)! 

If these are the missing choices: a. to determine skin temperature, place the back of your hand against the patient's skin.b. determine body temperature by touching the patient's hands and feet.c. skin temperature will tell you very little about this patient's condition or well-being.d. the patient's skin temperature and color will likely be warm and red.my answer is: a. to determine skin temperature, place the back of your hand against the patient's skin. using the back of the hand to check for temperature rather than the palm is more effective because the back of the hand has more nerves that can feel and transmit the temperature than the palm.

The zone your looking for is the intertidal zone.