Solve.The width of a rectangle is 6 meters less than twice its length. If its area is 176 square meters, find the dimensions of the rectangle.
A. length = 3 m, width = 
m
B. length = 11 m, width = 16 m
C. width = 11 m, length = 16 m
D. length = 8 m, width = 10 m
Answer: B
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Convert the rectangular coordinates to polar coordinates. Round r to the nearest tenth, if necessary, and round ? to the nearest tenth of a degree.(15, 20)
A. (25, 36.9°) B. (35, 36.9°) C. (25, 48.6°) D. (25, 53.1°)
Solve the problem.The image of a figure is given for a rotation that takes A to A' and D to D'. Find the original figure. Note again, the given figure is the image after rotation.
A. 
B. 
C. 
D. 
Find the value of the indicated trigonometric function of the angle ? in the figure. Give an exact answer with a rational denominator.
Find sin ?.
A. sin ? = 
B. sin ? = 
C. sin ? = 
D. sin ? = 
Solve the problem.Use the formula N = Iekt, where N is the number of items in terms of the initial population I, at time t, and k is the growth constant equal to the percent of growth per unit of time. There are currently 78 million cars in a certain country, decreasing by 0.8% annually. How many years will it take for this country to have 60 million cars? Round to the nearest year.
A. 18 years B. 361 years C. 23 years D. 33 years