Solve the problem.A mechanic is testing the cooling system in a boat engine. He measures the engine's temperature over time. Use a graphing utility to build a logistic model from the data. Round value to the nearest hundredth. Based on the model, what is the carrying capacity of the cooling system? 

A. y = ; 311.63°F
B. y = ; 314.79°F
C. y = ; 306.53°F
D. y = ; 314.79°F


Answer: B

Mathematics

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Find the equation of the least-squares regression line. Graph the line and data points on the same graph.

A. y = 4.88 + 0.625x


B. y = 4.88 + 0.525x


C. y = 4.98 + 0.725x


D. y = 4.98 + 0.425x


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Multiply and simplify.(10 + 9)(7 + 8)

A. 206 + 143
B. 70 + 72
C. 70 + 72 + 143
D. 494 + 143

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Find the slope of the tangent line at the given value of the independent variable.g(x) = , x = 9

A.
B.
C. - 
D. - 

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Write a matrix equation equivalent to the system of equations.3x - 9y + 12z = 4-4x + 3y - 10z = 3

A.
 = 
B.
  = 
C.
  = 
D.
  = 

Mathematics