Answer:
The bottle will last for 20 days.
Step-by-step explanation:
Given that:
Number of drops in a dose = 4 drops 
Dose is taken three times a day, therefore,
Number of drops taken in a day = 4*3 = 12 drops 
One milliliter = 20 drops 
12 mL = 20*12 = 240 drops 
Number of days the bottle will last can be find out by calculating total number of drops by the number of drops consumed in a day.
Number of days bottle will last = 
Hence,
The bottle will last for 20 days.
 
        
             
        
        
        
Answer:
The diagram reprents the 3 sets and the universal set . The shaded portion clearly can be seen as :

Shaded region = 
Try to understand some what complex
 
        
                    
             
        
        
        
First we need to find the total amount of servings needed.
(x2) 12 servings/5 people (x2)
        24 servings/10 people
Now we can find the amount of pans needed
24 servings/8 servings (1 pan)
=3 pans
She needs at least 3 pans
        
             
        
        
        
Answer:
The Z-score for that day's temperature is 2.41, and since Z > 2, this temperature is significantly high.
Step-by-step explanation:
Z-score:
In a set with mean  and standard deviation
 and standard deviation  , the z-score of a measure X is given by:
, the z-score of a measure X is given by:

The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the p-value, we get the probability that the value of the measure is greater than X.
If  , the measure X is significantly high(Z > 2) or significantly low(Z < -2).
, the measure X is significantly high(Z > 2) or significantly low(Z < -2).
The mean high temperature on a particular day in January is 31 degrees F and the standard deviation is 8.7 degrees.
This means that 
One year, the temperature was 52 degrees F on that day.
This means that  .
.
What is the Z-score for that day's temperature? 



The Z-score for that day's temperature is 2.41, and since Z > 2, this temperature is significantly high.