Solve the problem.Financial analysts in a company that manufactures ovens arrived at the following daily cost equation for manufacturing x ovens per day: C(x) = x2 + 4x + 1800. The average cost per unit at a production level of x ovens per day is 
(x) = C(x)/x. (i) Find the rational function 
. (ii) Sketch a graph of 
(x) for 10 ? x ? 125. (iii) For what daily production level (to the nearest integer) is the average cost per unit at a minimum, and what is the minimum
average cost per oven (to the nearest cent)? HINT: Refer to the sketch in part (ii) and evaluate 
(x) at appropriate integer values until a minimum value is found. 
A. (i) 
(x) = 
(ii) 
(iii) 44 units; $185.61 per oven
B. (i) 
(x) = 
(ii) 
(iii) 61 units; $133.29 per oven
C. (i) 
(x) = 
(ii) 
(iii) 22 units; $48.93 per oven
D. (i) 
(x) = 
(ii) 
(iii) 42 units; $88.86 per oven
Answer: D
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Evaluate the iterated integral.
A. 13? B. 7? C. 6? D. 12?
Add.(-4 + 8x5 + 3x7 + 7x6) + (6x6 + 2x5 + 8 + 4x7)
A. 7x7 + 13x6 + 10x5 + 4 B. 2x7 + 2x6 + 11x5 + 11 C. 30x36 + 4 D. 7x14 + 13x12 + 10x10 + 4
The line graph shows the recorded hourly temperatures in degrees Fahrenheit at an airport.
During which hours shown was the temperature greater than 76°F?
A. 10 a.m. to 3 p.m. B. 11 a.m. to 3 p.m. C. 11 a.m. to 5 p.m. D. 10 a.m. to 5 p.m.
Solve the problem, rounding the answer as appropriate. Assume that "pure dominant" describes one who has two dominant genes for a given trait; "pure recessive" describes one who has two recessive genes for a given trait; and "hybrid" describes one who has one of each.Two hybrids produce a litter of four offspring. What is the probability that exactly one is pure recessive?
A. .133 B. .211 C. .25 D. .422