Find the area of a sector of a circle with radius r and central angle ?. Round your answer to one decimal place.? = 232°, r = 21.8 mi
A. 89.4 mi2
B. 1924.3 mi2
C. 44.1 mi2
D. 962.2 mi2
Answer: D
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The population N, in thousands, of a small town after t years is given in the table below. Use exponential regression to find the yearly percentage decay rate of the population. Round your answer to two decimal places. t 2 4 6 8 10 N 8.70 6.91 5.07 3.92 3.32?
A. 12.00% B. 11.77% C. 13.77% D. 14.88%
Solve.10,500 college students were asked to name their favorite sport. Of this group, 
said basketball, 
said soccer, 
said baseball, 
said they had no favorite sport, and the remainder said volleyball. How many named each sport? 
A. Basketball: 3,500 Soccer: 2,100 Baseball: 1,800 Volleyball: 2,575 None: 525 B. Basketball: 3,500 Soccer: 2,100 Baseball: 1,750 Volleyball: 2,635 None: 515 C. Basketball: 3,500 Soccer: 2,100 Baseball: 1,750 Volleyball: 2,625 None: 525 D. Basketball: 3,500 Soccer: 2,050 Baseball: 1,750 Volleyball: 2,675 None: 525
Sketch the graph and show all relative extrema and inflection points.y = x5 - 80x
A. 
Relative minimum: (2, -48)
Inflection point: (0, 0)
B. 
Relative maximum: (-2, 16)
Relative minimum: (2, -16)
Inflection point: (0, 0)
C. 
Relative maximum: (2, 128)
Relative minimum: (-2, -128)
Inflection point: (0, 0)
D. 
Relative maximum: (-2, 128)
Relative minimum: (2, -128)
Inflection point: (0, 0)
Determine if the given set of whole numbers is closed under addition.{1, 3, 5, 7, . . . }
A. Closed B. Not closed