If A denotes the area of the sector of a circle of radius r formed by the central angle ?, find the missing quantity. If necessary, round the answer to two decimal places.? = 
radians, A = 84 square meters, r = ?
A. 32.97 m
B. 131.88 m
C. 14.63 m
D. 5.74 m
Answer: C
Mathematics
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A. 5x4 + 20x3 + 30x2 - 2x - 6 B. 5x4 + 25x3 + 30x2 - 2x - 6 C. 5x4 + 20x3 + 27x2 - 2x - 6 D. 5x4 + 25x3 + 27x2 - 2x - 6
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Solve the equation.-3x = 22 - 7
A. 22 B. 14 C. -5 D. 18
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Solve the formula for the specified variable.F = 
C + 32 for C
A. C = 
(F - 32)
B. C = 
C. C = 
D. C = 
(F - 32)
Mathematics
Solve the problem.Water is steadily pumped out of a flooded basement. Let v be the volume of water (in thousands of gallons) that remains in the basement t hours after water begins to be pumped. A linear model is shown. After how many hours of pumping will all the water be pumped out of the basement?
A. 4 hours B. 5.5 hours C. 4.5 hours D. 5 hours
Mathematics