To find it, evaluate it at the endpoints and the vertex
in form 
f(x)=ax²+bx+c
the x value of the vertex is -b/2a
given
c(t)=1t²-10t+76
x value of vertex is -(-10)/1=10
evaluate c(0) and c(13) and c(10)
c(0)=76
c(13)=115
c(10)=76
it reached minimum in 2000 and 2010
porbably teacher wants 2010
the min value is $76
        
             
        
        
        
Answer:
0.286
Hope that helps!
Step-by-step explanation:
 
        
                    
             
        
        
        
First, solve the parenthesis
Remember to follow PEMDAS, and the left-> right rule
12/3 = 4
4 x 2 = 8
8 + 3 = 11
11 - 7 = 4
Square the remaining number
4² = 4 x 4 = 16
16 is your answer
hope this helps
 
        
             
        
        
        
<h2>A. $123.51</h2><h2 />
 : $24.48 per year + price * 0.85
: $24.48 per year + price * 0.85
 : $36.83 per year + price * 0.75
: $36.83 per year + price * 0.75
Substitute each value into both equations as price. 
A:
129.4635
129.4625
B:
98.158
101.84
C:
145.2055
143.3625
D:
155.703
152.615
A is the lowest value where the second value is lower than the first.