#9 C) f- 1 (x) = 6+3x Solve the problem 8) A ship in the Atlantic Ocean measures

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#9

C) f- 1 (x) = 6+3x Solve the problem 8) A ship in the Atlantic Ocean measures its position to be 30 36' north latitude. A nother ship isreported to be due north of the first ship at 47 48' north latitude. Approximately how far apart are the two ships? Round to the nearest mile. A ssume that the radius of the Earth is 3960 miles. A) 1189 mi B) 68,132 mi C) 68,112 mi Find the area A of a sector of a cirde. Round the answe to three deaimal places 9) 70° 3 m C) 10.996 m2 D) 1.75 m2 A) 1.833 m2 B) 5.498 m2 car's tires turning? Solve the problem. ing at 25 mph. If its tires have a diameter of 25 inches, how fast are the d to two decimal places. necessary, roun Express the answer in revolutions per minute. It D) 672.27 rpm C) 336.13 rpm R) 2112 rpm

Explanation / Answer

9) central angle = 70 degrees

radius = 3m

area of sector = 1/2 r^2 theta

= 1/2 * 3^2 * 70 * pi/180  

= 10.996

hence, area = 10.996 m^2

option c is correct

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