Answer:
4) C
5) C
Step-by-step explanation:
 
        
             
        
        
        
Answer:
11.4
Step-by-step explanation:
d² = 6² + 6² - 2(6)(6)cos145
d² = 130.9789472
d = 11.44460341
 
        
             
        
        
        
Answer:
add 17 to both sides
Step-by-step explanation:
 as it cancels itself
mark brainliest
 
        
             
        
        
        
Answer:
 x = ± √3 = ± 1.7321
 x = 1
 x = -1
Step-by-step explanation:
If it correct can you give me Brainliest plz
 
        
             
        
        
        
When we speak of the word "perimeter" of a circle, we mean to say the circumference. Since we are only given a semicircle, the perimeter would be,
                                      perimeter = (pi)(radius) + diameter
Substituting the known values,
                                      perimeter = (3.14)(6 cm) + 12 cm
The value of the perimeter is,
                                      perimeter = 30.84 cm