Answer:
1, -0.5, -1/4, 0, 0.75
Step-by-step explanation:
i have no clue on the second onde
 
        
             
        
        
        
Answer:
x = 13
Step-by-step explanation:
Note that the side length x is opposite of the right angle, which means that it is the hypotenuse, which will usually be denoted as c.
Set the equation: 
a² + b² = c²
let: 
a = 5
b = 12
c = x
Plug in the corresponding numbers (& x) to the corresponding variables:
(5)² + (12)² = (x)²
Simplify. First, solve for the power, and then add: 
x² = (5²) + (12²)
x² = (5 * 5) + (12 * 12)
x² = 25 + 144
x² =  169
Next, root both sides of the equation: 
√x² = √169
x = √169 = √(13 * 13) = 13
x = 13
~
Note the rules, and it should be easier: 
30-60-90° = 1 , √3 , 2
45-45-90° = 1 , 1 , √2
Any other measurements use the equation:  a² + b² = c²
 
        
             
        
        
        
Answer:
Step-by-step explanation:
7