Write a logistic equation with the given parameter values. Then solve the initial value problem and graph the solution. Let r be the natural growth rate, K the carrying capacity, and P0 the initial population.r = 0.2, K = 1980, P0 = 90

A. P' = 0.2P; P = - 

B. P' = 0.2P; P = 

C. P' = -0.2P; P = 

D. P' = 0.2P; P = 


Answer: D

Mathematics

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Find all real numbers that satisfy the equation.7 cos x + 5 = 5 cos + 4

A. x =  + 2n? or x =  + 2n?
B. x =  + n? or x =  + n?
C. x =  + 2n? or x =  + 2n?
D. x =  + n? or x =  + n?

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A. 4.5 ft B. 5.5 ft C. 3.5 ft D. 6 ft

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A. {(2, 2), (2, 4), (2, 6), (4, 2), (4, 4), (4, 6), (6, 2), (6, 4), (6, 6)} B. {(2, 2), (4, 4), (6, 6)} C. {(2, 2), (2, 4), (2, 6)} D. {(2, 4), (2, 6), (4, 2), (4, 6), (6, 2), (6, 4)}

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Find the simple interest. Round your answer to the nearest cent.Principal = $1680Rate = 13%Time in months = 3

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Mathematics