Name the highlighted angle using the three-letter form of identification.
A. ?R
B. ?IRF or ?FRI
C. ?JRF or ?FRJ
D. ?BRI or ?IRB
Answer: B
Mathematics
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Find the area of the specified region.Shared by the circles r = 9 cos ? and r = 9 sin ?
A. 
(? - 2)
B. 
(4? - 3
)
C. 
?
D. 
(2 - 
)
Mathematics
Solve.Acme Communication finds that the total revenue function associated with producing a new type of cellular phone is 
and the total cost function is 
where x represents the number of units of cellular phones produced. Find the total profit function, P(x) .
A. P(x) = -2x2 + 222x - 7000 B. P(x) = -x2 + 216x + 6000 C. P(x) = x4 - 204x2 + 6000 D. P(x) = -x2 + 204x - 6000
Mathematics
Solve the problem.A man has 7 shirts and 11 ties. How many different shirt and tie arrangements can he wear?
A. 77 B. 121 C. 49 D. 154
Mathematics
Subtract.2 - 2
A. -2 B. 4 C. 2 D. 0
Mathematics