Answer:
7/12
Step-by-step explanation:
So, the probability of picking up a blonde wig = 1/2
The probabiliy of picking up a brunette wig = 1/12
The question asks to find th eprobability of picking up either of these types of wigs = 
1/2 + 1/12 
= 6/12 + 1/12 ( LCM of 12 and 1 is 12 )
= 7/12 
Hope this helps 
 
        
             
        
        
        
Answer:
A and B
Step-by-step explanation:
 I tried it and it was correct. The United states has the tallest... and China has more buildings... are the correct ones.
 
        
             
        
        
        
Step-by-step explanation:
8²+x²=17²
74+ײ=289
x²=225
Sq root both sides
x=15
15×8=120 Sq ft
 
        
             
        
        
        
Answer:
f(x) = 4x² - 1
Step-by-step explanation:
The given function is; f(x) = x²
Now, when stretched vertically by a factor of 4, we have;
f(x) = 4x²
It's now shifted 1 unit down.. Thus, the final function will be;
f(x) = 4x² - 1