Determine the domain of the function.f(x) = 
A. 
B. 
C. 
D. (-?, ?)
Answer: C
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Determine if the equation is true or false.cos 
= cos 
A. True B. False
The quantity demanded each month of the Sicard wristwatch is related to the unit price by the equation 
, where
src="https://sciemce.com/media/3/ppg__cognero__4.4_Optimization_I__media__7424c072-8252-4b27-94ba-8487358d8e95.PNG" style="vertical-align: middle;" /> is measured in dollars and 
is measured in units of a thousand.
?
To yield a maximum revenue, how many watches must be sold?
?
__________
Fill in the blank(s) with the appropriate word(s).
Solve the problem.Two points A and B are on opposite sides of a building. A surveyor chooses a third point C 79 yd from B and 98 yd from A, with angle ACB measuring 59.3°. How far apart are A and B (to the nearest yard)?
A. 89 yd B. 107 yd C. 116 yd D. 98 yd
Solve the linear system by using an inverse matrix.
A. {(-3, 4)} B. {(3, -4)} C. {(-4, 3)} D. {(4, -3)}