Multiply.

A. 856
B. 733
C. 756
D. 726


Answer: C

Mathematics

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Solve the problem.A tank initially contains 100 gal of brine in which 40 lb of salt are dissolved. A brine containing  of salt runs into the tank at the rate of 4 gal/min. The mixture is kept uniform by stirring and flows out of the tank at the rate of 3 gal/min. Find the solution to the differential equation that models the mixing process.

A. y = 4(50 + t) - 
B. y = 4(50 + t) - 
C. y = 2(100 + t) - 
D. y = 2(100 + t) - 

Mathematics

Eliminate the parameter to obtain a Cartesian equation of the curve.x = ln t, y = t, 0 < t < ?

A. y = ex B. y = ln x C. ex = ln y D. x = ey

Mathematics

Solve the problem.Write 46 out of 50 plant species as a reduced fraction and as a percent.

A. 920%
B. 92
C. 9.2
D. 920

Mathematics

Determine the relative extrema of the function on the interval . ?

A. relative minimum:

relative maximum: 


B. relative minimum: 

relative maximum: 


C. relative minimum: 

relative maximum: 


D. relative minimum: 

relative maximum: 


E. relative minimum: 

relative maximum: 


Mathematics