Step-by-step explanation:
a drop in temperature means the temperature will decrease.
That decrease is represented with a negative integer which should be added to the previous temperature.
D 600 because it increases by the same amount so you just add 55 12 times
Answer:

Step-by-step explanation:
-Given the population mean is
and the standard deviation is
, we calculate the z-scores using the formula:

#The z-score for 1910 can be calculated as:

#The z-score for 1230can be calculated as:

#The z-score for 2190 is calculated as follows:

#The z-score for 1380 is calculated as:

3/8+x=1
x=5/8
A 1 inch button is 5/8 inches longer than a 3/8 inch button.