Answer: 23
Step-step by explanation:
w(w+4)=437
w^2+4w-437=0
(w+23)(w-19)=0
w=19,-23
w<19
l<23!!
 
        
             
        
        
        
Answer:
 I think the answer is$12 - $3 = $9
the amount u need is $9 to have the complete amount u need to purchase the ticket
 
        
                    
             
        
        
        
U can do this 2 ways...
26.50 + 0.06(26.50) = 26.50 + 1.59 = 28.09 <==
or
1.06(26.50) = 28.09 <=
        
                    
             
        
        
        
We are given a boxplot that contains some data. We will use the information below to analyze the given question.
STEP 1: Median
From the image above, we can see that the median represents the line drawn inside the box
This gives;

STEP 2: Interquartile range
The interquartile range is the difference between the third quartile and the first quartile.
 
 
        
             
        
        
        
Answer:
Step-by-step explanation:
This is a Combination (as in permutation vs combination) question the symbol (n r) refers to "n choose r". This is sometimes written as nCr
i.e the question is asking you to find how many combinations each will yield when you chose r items from n item without repetition and order does not matter. 
I will only do the first question for you and you can just follow the same steps to solve the rest of the questions.
Recall that
 
Consider question a) we are given (5 1) or ₅C₁
we can see that n = 5 and r = 1
If we substitute this into the formula:
₅C₁ = (5!) / [ (1!)(5- 1)!]
= (5!) / [ (5- 1)!]
= (5!) / (4!)
= (5·4·3·2·1) / (4·3·2·1)
= 5
hence ₅C₁ = 5