4.25x2.66= 11.305
...............................
The answer is (x+1)-(2x-4)=6
<span>0.27 * 60 = Take the integer part only to get the minutes, then multiply the decimal part by 60 again to get the second</span>
Answer:
83,491.67 dollars
Step-by-step explanation:
Given that a certain electronics manufacturer ound that the average cost C C to produce x DVD/Blu- ray players can be found using the equation 
To find the minimum average cost per machine we can use derivative test.
we find first and second derivative.
If for a particular value of x first derivative is 0 and second derivative is positive, then that x satisfies the minimum cost criteria.

Second derivative is always positive
I derivative =0 gives

For 83 players the cost would be minimum
Minimum cost = 