Find the exact value of the expression.cos 
cos 
+ sin 
sin 
A. 
B. 
C. 
D. 1
Answer: C
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Find the volume of the solid generated by revolving the region bounded by the given curves about the x-axis.y = 
, y = 0, y = x - 6
A. 
?
B. 
?
C. 
?
D. 27?
Find the focus and directrix of the parabola.y2 = 32x
A. (8, 0); x = 8 B. (8, 8); x = 8 C. (8, 0); x = -8 D. (0, 8); y = -8
Solve the problem.A lumber yard has fixed costs of $5388.00 per day and variable costs of $0.54 per board-foot produced. Lumber sells for $2.54 per board-foot. How many board-feet must be produced and sold daily to break even?
A. 1749 board-feet B. 9977 board-feet C. 1796 board-feet D. 2694 board-feet
Solve the problem.The price p of a certain product and the quantity sold x obey the demand equation p = - 
x + 200, 0 ? x ? 300. Suppose that the cost C of producing x units is C = 
+ 800. Assuming that all items produced are sold, find the cost C as a function of the price p.
What will be an ideal response?