Answer:
c 3/2
Step-by-step explanation:
 
        
             
        
        
        
Answer:
   M(h) = 73.18025h
Step-by-step explanation:
The composite function is ...
   M(B(L(h))) = M(B(28.75h)) = M(1.78(28.75h)) = M(51.175h)
   = 1.43(51.175h) = 73.18025h
The composite function is ...
   M(h) = M(B(L(h))) = 73.18025h
 
        
             
        
        
        
Answer:
x= -1/2 = -0.500
x=4
Step-by-step explanation:
2x^2-7x-4=0
2x^2-8x+1x-4=0
2x(x-4)+1(x-4)=0
(2x+1)(x-4)=0
2x+1=0...2x= -1.. x= -1/2         x-4=0 ..  x=4
checking the solution 
2(-1/2)^2-7(-1/2)=4.....  4=4
2(4)^2-7(4)=4....... 4=4
 
        
             
        
        
        
Answer:
The roots of the equation is real and repeated 
Step-by-step explanation:
Here, we want to describe the nature of the roots of the given quadratic equation 
To get the nature of the roots, we find the discriminant of the equation 
The discriminant is;
b^2 - 4ac 
In this case, b = -28 , a = 49 and c = 4
The discriminant is thus;
-28^2 - 4(49)(4)
= 784 - 784 = 0 
Since the discriminant is zero, this means that the quadratic equation has real roots which are the same 
 
        
             
        
        
        
42 I think. I'm sorry if I'm wrong.. Hope this helped!!