<span>a. find the number of units of tacos she must sell to minimise her cost.
</span>to find a minimum we need to find the function derivative and make it equal to zero:
dc/dx = 2x - 40 = 0
2x = 40
x = 20
therefore to minimize the cost, she needs to sell 20 units of tacos
<span>b. find the minimum cost.
</span>that can be done by substituting the previous result, 20 tacos, in the original equation:
<span>C(x) = x^2 - 40x + 610
</span>C(20) = (20)^2 - 40(20) + <span>610
</span>= 400 - 800 + 610
= 210
the minimum cost will be 210 dollars
Answer:
<h2>
{ 1 , 2 , 3 , 4 }</h2>
Explanation:
<h3>
<u>Domain</u><u> </u><u>and</u><u> </u><u>Range:</u></h3>
Let R be a relation from A to B. Then the set of first components or the set of elements of A are called domain and the set of second components or the set of elements of B are called the range.
Hope this helps...
Good luck on your assignment..
The equation would be ' y = 1/2x'
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17.5$ for every 5 bottles refilled. $3.50 for every 1 bottle refilled
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