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: There are several ways in which we can determine our marketing budget. Some of these are given below:
<u><em>1. Percentage of revenues:</em></u>
Under this method we usually take a fixed percentage of our revenues and further allocating this amount for marketing. We will choose the percentage that works best for us.
<u><em>2. Percentage of net sales:</em></u>
This method determines our marketing budget as a fraction of our net sales. This method will take a lot of trial and error to find the percentage that works well for our company.
<u><em>3. Industry specific:</em></u>
Nowadays, industries have specific projections as to the amount they will need to spend on marketing . The best way to get these numbers is to find a firm that represents our industry and ask them to provide us with averages. We can then refine the actual costs.
<em><u>4. Objective/task oriented
</u></em>
This is model that works by setting out goals, planning out the tasks and then estimating the cost for all of these tasks. It works greatly for firms who have a immense knowledge about measurements and information of their business processes.
The other angle would be 118°
The three angles of a triangle must add up to 180°.
Step-by-step explanation:
<u>Step 1: Solve using the first point</u>
<em>(2, 28)</em>


<u>Step 2: Solve using the second point</u>
<em>(-1, -5)</em>


<u>Step 3: Solve using the third point</u>
<em>(4, 220)</em>


<u>Step 4: Solve using the fourth point</u>
<em>(-2, -20)</em>


<u>Step 5: Combine the first and fourth equations</u>
<u />




<u>Step 6: Solve for c in the second equation</u>



<u>Step 7: Substitute d with the stuff we got in step 5</u>



<u>Step 8: Substitute d and c into the first equation</u>
<u />





<u>Step 9: Substitute a, b, and c into the third equation</u>





<u>Step 10: Find a using b = 2</u>



<u>Step 11: Find c using a = 3 and b = 2</u>




<u>Step 12: Find d using b = 2</u>




Answer: 
Answer: (–3, 1) , (5, –2)
Step-by-step explanation: Got it right Edgenuity