Using a protractor, find the image of ?ABC under the rotation about point O of 80°.
Answers may vary. Draw OA and use the protractor to find A' so that ?A' OA = 80 (a
counterclockwise turn) and OA = OA'. Do the same for B' and C'.
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Provide an appropriate response.What types of instruments create music digitally?
A. trombones B. pianos C. synthesizers D. guitars
Solve the problem.One rope pulls a barge directly east with a force of 86 N, and another rope pulls the barge directly north with a force of 64 N. Find the magnitude of the resultant force acting on the barge. Round to the nearest Newton.
A. 107 N B. 5500 N C. 22 N D. 150 N
Find the product and simplify.
? 
A. 4
B. 2
C. 
D. 
Solve the problem.The concentration of a drug in the bloodstream, measured in milligrams per liter, can be modeled by the function, 
where t is the number of minutes after injection of the drug. When will the drug be at its highest concentration? Approximate your answer rounded to two decimal places.
A. t = 3.65 minutes after the injection is given B. at the time of injection C. t = 4 minutes after the injection is given D. t = 0.55 minutes after the injection is given