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.? = 3 radians, A = 61 square meters, r = ?
A. 366 m
B. 6.38 m
C. 91.5 m
D. 9.57 m
Answer: B
Mathematics
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A. after 6 hours B. after 9 hours C. after 5 hours D. after 7 hours
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Express as a sum of logarithms.log48x
A. log48 + log4x B. log48 - log4x C. log28 - log2x D. log28 + log2x
Mathematics
Solve the logarithmic equation.loga (x - 2)= 0
A. -1 B. 3 C. 2 D. ?
Mathematics
Solve the problem.The population growth of an animal species is described by 
where t is measured in months. Find the population of this species in an area 4 month(s) after the species is introduced.
A. 500 B. 1260 C. 980 D. 650
Mathematics