Answer:
In a decimal it would be 177.577
In a fraction it would be 177  577/1000
 
        
                    
             
        
        
        
Answer:
C = 8 pi cm
Step-by-step explanation:
The area of a circle is given by 
A = pi r^2
16 pi = pi r^2
Divide each side by pi
16 = r^2
Taking the square root
4 = r
The circumference is 
C = 2 * pi *r
C = 2* pi *(4)
C = 8 pi cm
 
        
             
        
        
        
Answer: Car B traveled 60 mph. 
Step-by-step explanation:
A= B-15
A: (B - 15)(2 hr)=D
B: (B)(1.5)=D
Since B and A traveled the same distance you can plug in 1.5B for D. 
 2B - 30 = 1.5B
-1.5B +30 = -1.5B
——————+30—
2(0.5B) = 2(30)
B = 60 mph
 
        
                    
             
        
        
        
1.1 Factoring: 4x2+9y2+16z2-6xy-12yz-8xz 
Thoughtfully split the expression at hand into groups, each group having two terms :
Group 1: -6xy-12yz 
Group 2: 16z2-8xz 
Group 3: 4x2+9y2 
Pull out from each group separately :
Group 1: (x+2z) • (-6y)
Group 2: (x-2z) • (-8z)
Group 3: (4x2+9y2) • (1)
Looking for common sub-expressions : 
Group 1: (x+2z) • (-6y)
Group 3: (4x2+9y2) • (1)
Group 2: (x-2z) • (-8z)
        
             
        
        
        
Answer:
f(x=16
Step-by-step explanation:
f(-5)=-2(-5)+6
f(-5)=10+6
f(-5)=16