Answer:
63/64
Step-by-step explanation:
cross multiplication
7*9=63
8*8= 64
 
        
                    
             
        
        
        
20² = (8 + 8)² + x²
x = 12
-
the missing side has a value of 12, found using pythagorean theorem
        
             
        
        
        
Answer:
 Inequality: 
 Inequality solved: 
 The graph is attached.
Step-by-step explanation:
  You need to remember the meaning of the inequalities symbols:
  : Less than.
 : Less than.
  : Greater than.
 : Greater than.
  : Less than or equal to.
 : Less than or equal to.
  : Greater than or equal to.
 : Greater than or equal to.
 
 Let be "x" the number of more songs Carlotta can download.
 According to the information given in the exercise, she can download no more than 12 song files per week. This indicates that you must use the symbol  .
.
 Since she has already downloaded 10 song files this week, you can write the following inequality that represents this situation:
 
 
 In order to solve it, you must subtract 10 from both sides:
 
 Plot this result on a number line. 
 Since the symbol of the inequality is  , the dot must be filled (Observe the number line attached).
, the dot must be filled (Observe the number line attached).
 
        
             
        
        
        
3/12 of the mug is not blue or red
        
             
        
        
        
Answer: 
first box is parallel 
Second box perpendicular 
Third box neither
Fourth box neither
Fifth box perpendicular 
Sixth box is parallel
Why? Slopes of parallel lines are the same. Slopes of perpendicular lines are opposite reciprocals. (Example slope=1/2 a perpendicular line would be -2/1). Neither is just a when it’s not either parallel or perpendicular.
Hope this helps