Answer:
A. Between 3.0 and 3.5 and between 4.0 and 4.5
Step-by-step explanation:
The zeroes of a function occur whenever a value of x returns zero. To predict where the zeroes lie, determine the interval(s) where the function crosses the x-axis. This occurs when either  goes from a negative value to a positive value or vice versa.
 goes from a negative value to a positive value or vice versa.
From  and
 and  , the y-values go from 4.0 (positive) to -0.2 (negative), respectively. Therefore, there must be a zero in this interval.
, the y-values go from 4.0 (positive) to -0.2 (negative), respectively. Therefore, there must be a zero in this interval.
From  and
 and  , the y-values go from -0.8 (negative) to 0.1 (positive), respectively. Therefore, there must also be a zero in this interval.
, the y-values go from -0.8 (negative) to 0.1 (positive), respectively. Therefore, there must also be a zero in this interval.
Thus, the zeros of this function occur between 3.0 and 3.5 and between 4.0 and 4.5, leading to answer choice A.
 
        
             
        
        
            
            
                Determine whether the relation is a function. {(−3,−6),(−2,−4),(−1,−2),(0,0),(1,2),(2,4),(3,6)} 
                Gennadij [26K]             
         
        
Answer:
The relation is a function.
Step-by-step explanation:
In order for the relation to be a function, every input must only have one output. Basically, you can't have 2 outputs for 1 input but you can have 2 inputs for 1 output. Looking at all of the points in the relation, we see that no input has multiple outputs, so the answer is yes, the relation is a function.
 
        
             
        
        
        
Anything times 1 = the same number so 696969x1=696969
 
        
                    
             
        
        
        
Answer:
   200 students were in the program
Step-by-step explanation:
The parent should know how to figure ...
   170/85% = total/100%
This is the same as ...
   total = 170/0.85 = 200
200 students were in the program.
_____
<em>Critical Thinking</em>
There are three declarative statements here. <em>There is no question</em>. We have made up a question to answer. 
Another possible answer to the non-question could be, "The parent can ask his student how many students were in the program."
 
        
             
        
        
        
Answer:
b
Step-by-step explanation:
(x+12)^2=1
or 
(x+12)= +or - 1
when 
x+12=1 
x=1-12 =-11
when 
x+12=-1
x=-1-12 =-13
then
x=-11 and x= -13