Answer:
x = 5 and -2
Step-by-step explanation:
Given the function of x to be;
f(x) = (x-5)(x+2)/x+1
The value of x that will make the function zero can be calculated for by equating the given function to zero first to have;
If f(x) = 0, then;
(x-5)(x+2)/x+1 = 0
Cross multiplying;
(x-5)(x+2) = 0
(x-5) = 0 and x+2 = 0
x = 5 and x = -2
The value of x that will make the function zero is therefore 5 and -2
 
        
                    
             
        
        
        
Answer:0,3 for y and 4,0 for x
the second one is 0,6 for y and for the x it will be -3,0
Step-by-step explanation:
 
        
             
        
        
        
You Just want to get Fahrenheit alone on one side of the equal sign. Your  teacher forgot to use parenthesis. The correct equation for Celsius to Fahrenheit is:  
 
Which will give you a completely different answer.... 
**** 
We will solve it using what is given: 
C = (5/9)F - 32 
C + 32 = (5/9)F 
9(C + 32) = 5F 
(9/5)(C + 32) = F 
** If they mark you wrong, and try to say the answer is F = (9/5)C + 32 then they shouldn't be teaching math, and you should point out the fact there are no parenthesis around the F - 32 in the given formula.  
 
        
             
        
        
        
Answer:
Step-by-step explanation:
42-42(2/7)
42-12
30 
There are 30 options with no chocolate.
 
        
             
        
        
        
Answer:
90, 81, 72, 63, 54
Step-by-step explanation:
I think that these numbers make up the most possible product. Having the larger numbers on the side as the tens digit would be a better way of making the product bigger so that you can leave the smaller numbers for the smaller ones digit.