The quantity demanded per month of an item is related to the unit price by the demand equation 
where p is measured in dollars and x is measured in units of a thousand. How many items must be sold by the manufacturer to maximize its revenue?
Hint: Recall that the revenue is given by R = px.
5,000
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Identify the quadric surface by name. Find and describe the xy-, xz-, and yz-traces, when they exist.-9x2 - 9y2 + z2 = 9
A. Hyperboloid of two sheets; xy-trace: -9x2 - 9y2 = 9 (circle); xz-trace: z2 - 9x2 = 9 (hyperbola); yz-trace: z2 - 9y2 = 9 (hyperbola) B. Ellipsoid; xy-trace: -9x2 - 9y2 = 9 (circle); xz-trace: z2 - 9x2 = 9 (ellipse); yz-trace: z2 - 9y2 = 9 (ellipse) C. Hyperboloid of two sheets; xz-trace: z2 - 9x2 = 9 (hyperbola); yz-trace: z2 - 9y2 = 9 (hyperbola) D. Hyperboloid of one sheet; xy-trace: -9x2 - 9y2 = 9 (circle); xz-trace: z2 - 9x2 = 9 (hyperbola); yz-trace: z2 - 9y2 = 9 (hyperbola)
Determine a general formula (or formulas) for the solution to the equation.sin ? csc ? = -2 sin ?
A. ? = 
+ n? or ? = 
+ n? or ? = n?
B. ? = 
+ 2n? or ? = 
+ 2n? or ? = n?
C. ? = 
+ n? or ? = 
+ n? or ? = n?
D. ? = 
+ 2n? or ? = 
+ 2n? or ? = n?
Find the amount to be paid by the insurance company. Assume the policy includes an 80% coinsurance clause. Round to the nearest dollar.Replacement Cost of Building: $357,000Face Value of Policy: $250,000Amount of Loss: $2400
A. $2400 B. $1920 C. $2743 D. $2101
Is the network in d) an Euler circuit? Can this network can be traversed?
?
?
A. an Euler circuit; traversable B. not an Euler circuit; traversable C. not an Euler circuit; not traversable D. an Euler circuit; not traversable