Find the domain and range of the function represented in the graph.
A. Domain: [0, 4]; Range: [0, 2]
B. Domain: [0, 7]; Range: [0, 5]
C. Domain: (-?, 2]; Range: [4, ?]
D. Domain: [0, 2]; Range: [0, 4]
Answer: D
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Without graphing the function, determine its amplitude or period as requested.y = 4 sin 
xFind the amplitude.
A. 4
B. 
C. 6?
D. 
Find the directrices of the ellipse.25x2 + 36y2 = 900
A. y = ± 
B. x = ± 
C. y = ± 
D. x = ± 
Find the amount paid by each of the multiple carriers.The Hamilton Race Track had a fire loss of $207,000. They had insurance as follows: company A, 
company B, 
; and company C, $50,000. Find the amount paid by each carrier. Assume the coinsurance requirement is met.
A. A pays: $82,800 B pays: $82,800 C pays: $41,400 B. A pays: $103,500 B pays: $69,000 C pays: $34,500 C. A pays: $207,000 B pays: $0 C pays: $0 D. A pays: $165,600 B pays: $20,700 C pays: $20,700
The quantity demanded each month of the Walter Serkin recording of Beethoven's Moonlight Sonata, manufactured by Phonola Record Industries, is related to the price/compact disc.
?
The equation 
, where 
denotes the unit price in dollars and 
is the number of discs demanded, relates the demand to the price.
?
The total monthly cost (in dollars) for pressing and packaging x copies of this classical recording is given by 
.
?
To maximize its profits, how many copies should Phonola produce each month? Hint: The revenue is 
, and the profit is 
.
?
A. 
copies
B. 
copies
C. 
copies
D. 
copies
E. 
copies