Solve the problem. Round to two decimal places if needed.Find the length of the arc intercepted by a central angle of ? = 60° in a circle of radius r = 4 feet.
A. 4.35 feet
B. 4.4 feet
C. 4.25 feet
D. 4.19 feet
Answer: D
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Solve.On an architect's blueprint, 1 inch corresponds to 6 feet. If an exterior wall is 
long, find how long the blueprint measurement should be. Write the answer as a mixed number if necessary.
A. 5 in.
B. 6 in.
C. 15 in.
D. 1
in.
Rewrite the trigonometric expression as an algebraic expression involving the variable u. Assume that 
and that the value of the "inner" inverse trigonometric expression represents an angle ? such that 
tan (csc-1 u)
A. 
B. 
C. 
D. 
Find the linear function that is the best fit for the given data. Round decimal values to the nearest hundredth, if necessary.
A. y = 9.2x - 2.1 B. y = 9.8x - 2.6 C. y = 10x - 3 D. y = 9x - 3
Determine whether the proportion is true or false.
= 
A. True B. False