Answer:
194.
Step-by-step explanation:
 x = (7+4√3)
x^2 =  x = (7+4√3)^2
= 49 + 48 + 56√3
= 97 + 56√3
x^2 + 1/x^2 =    97 + 56√3 + 1/(97 + 56√3)
= 194.
 
        
             
        
        
        
Answer:
D
Step-by-step explanation:
 
        
             
        
        
        
Answer:
To add percentages, you have to make the percentage into a decimal with "1" as the whole number if it's lower than 100%.
So, $60 x 1.60 = 
$96.00
The original price of the pair of shoes were: $96.00
 
        
             
        
        
        
Actual length = 3.5 × 120
actual length = 420 cm
actual length = 4.2 m
actual width = 2.5 × 120
actual width = 300 cm
actual width = 3 m
actual area = l × w
actual area = 4.2 × 3
actual area = 12.6 m²
the answer is b
        
             
        
        
        
Answer:
B
Step-by-step explanation: