You didn't specify, but a human should be awake no longer than 16 hours a day (if this is what you meant)
The formula for Sums of squares of the residuals (SSR) is attached below.
Therefore, option B is correct:
B. I would calculate the difference between the observed outcome (Y) and the predicted value of Y (Y_hat), square each one of these differences, and add them up.
The answer is C, they show info about years in the past, present and future, ask your teacher or any website and they can show you a line graph. :)
Answer:
Zn(NO3)2 +Cu
Explanation:
Replacement reaction is a type of chemical reaction in which an element react with a compound and take the place of another element in that compound.
Zn is more reactive than Cu, therefore Zn replaces cu from CU(NO3)2 to form Zn(NO3)2 +Cu