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
<span>If you tripled the slant height and radius of a cone, the
formula to find the modified surface area would be 6 and 6. I am hoping that this
answer has satisfied your query about and it will be able to help you, and feel
free to ask another question if you’d like.</span>
Answer:h=60×2
=120
Step-by-step explanation: