Find the perimeter.
A. 620 ft
B. 15,376 ft
C. 744 ft
D. 635 ft
Answer: A
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Determine the domain of the function. Express your answer in interval notation.f(x) = 
A. [11, ?) B. (-?, 11) C. (-?, -11) D. [-11, ?)
Find the product. Write the product in rectangular form, using exact values.[4(cos 150° + i sin 150°)] [6(cos 330° + i sin 330°)]
A. 12
+ 12i
B. 24i
C. 24
D. -12 + 12
i
Solve the problem.Suppose f(x) = 28.5 + 1.5log (x + 1) models salinity of ocean water to depths of 
at a certain latitude. x is the depth in meters and f(x) is in grams of salt per kilogram of seawater. Approximate the salinity (to the nearest hundredth) when the depth is 845 meters.
A. 81.93 B. 32.89 C. 84.93 D. -24.11
Provide an appropriate response.What is the domain of the function y = 
x?
A. (-?, 0) B. (-?, ?) C. (0, ?) D. [0, ?)