Answer:
p(7) = 57
Step-by-step explanation:
Because this is a function, all you have to do is input 7 for x like so:
p(x)=x^2+x+1 --------------->     p(7)=7^2+7+1
                                             so 49 + 8
                                                 = 57
 
        
             
        
        
        
Answer:  2x-6
Work Shown:
john = x
sam = x-3 since he scored 3 fewer than john
rob = 2*(sam) = 2(x-3) = 2*x-2*3 = 2x-6
 
        
             
        
        
        
<em>Answer:</em>
<em>U10 = 19</em>
<em>Step-by-step explanation:</em>
<em>The sequence is </em> <em />
<em />
<em>x is the coefficient to U.</em>
<em>So, </em> <em />
<em />
<em>Which means </em> <em />
<em />
<em>Which means </em> <em />
<em />
<em>And there is your answer.</em>
<em>Hope this helps. Have a nice day.</em>