Answer:
Need more information
Step-by-step explanation:
 
        
             
        
        
        
Answer:
two number not included in domain are x=0  and x=-5/2
Step-by-step explanation:
Let f(x)= 5/x and g(x)=2x^2+5x
WE need to find out the excluded value in the domain of  f o g
f o g is the composition of functions
f o g= f(g(x))
lets plug in g(x) in f(x) 

replace 2x^2+5x in f(x)

here we have 2x^2+5x in the denominator
to find the numbers that are in domain we set the denominator =0 and solve for x
Because when denominator becomes 0 the function is undefined


x=0             and           2x+5=0  (subtract 5 on both sides)
                                      2x= -5  (divide by 2 on both sides)
                                       x=-5/2 
 
        
                    
             
        
        
        
Answer:
1.67 + 4
4.5-1.47
Step-by-step explanation:
1.67 + 4 = 5.67
4.5 - 1.47 = 3.03