Answer:  [D]:    y  =  -3x  +  2  .
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Answer:
B
Step-by-step explanation:
B
x - 4 squared provides 2 real zeros that are the same. These two are not distinct.
The other two come from x^2 - 7x + 10 which has a discriminate of 
sqrt(7^2 - 4*1*10) = sqrt(9) = +/- 3 leading to something real and different.
 
        
             
        
        
        
In this question, we have to write the set of points from -6 to 3 but excluding -2 and 3 as a union of intervals .
For union, we use U.
For the points that we have to exclude , we put parenthesis on there side  that is  ().
Therefore the required interval form is

As we see that () are used with -2 and 3 . And that's the required interval form .
 
        
             
        
        
        
Answer:
21/55
Step-by-step explanation:
 dividamos por 5
= 21/55
 
        
             
        
        
        
Answer:
C, y=4.5
Step-by-step explanation:
y=2.5x-3 if you plug in 3 for x and sole the equation its y = 7.5 - 3 so then it's 4.5 equals y.