not e a calculator, 8) csc 45 nvert the angle to a decimal in degrees. Round the
ID: 3120715 • Letter: N
Question
not e a calculator, 8) csc 45 nvert the angle to a decimal in degrees. Round the answerto two decimal places. 9) 23 4737 23.79e D) 23.940 C) 23.84 lve the problem. 10 Find tan P. 12 16 A) tan P B) tan P 11) For acircle of radius 4 feet,find the arc length ssubtended by a central angle of30°. Round to the 11) nearest hundredth. B) 6.28 ft A) 2.09 ft 12 Use a calculator to find the value of oos 118 Round to the nearest hundredth D) 0.19 088 A)-1.88 trgonometric identities to end the exact value of sin2 30e. 13) Given cos 30 A) cycle. The base of the blade is windshield wiper sweeps out an angle of 135 in one 12 inches from the pivot point and the tip is 32 inches from the pivot point. What area does the wiper cover in one cycle? (Round to the nearest 0.1 square inch) 11053 in? 1041.8 ir C-2Explanation / Answer
11) Angle subtented = 2*pi*4 *30/360 = 2.093 ft which is option A
20) sint = 1/2
sin^2t = 1/4
We knwo that sin^2t +cos^2t = 1
So, cos^2t = 1-1/4 = 3/4
cost = -sqrt(3)/2 , since sect <0, cost = -sqrt(3)/2
tant = sint/cost = (1/2)/-sqrt(3)/2 = -sqrt(3)/3
Answer is A
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