Solve the problem.The amount of particulate matter left in solution during a filtering process decreases by the equation  where n is the number of filtering steps. Find the amounts left for n = 0 and  (Round to the nearest whole number.)

A. 300, 9
B. 300, 1200
C. 600, 75
D. 300, 75


Answer: D

Mathematics

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Part of $2,600 is invested at 12%, another part at 13%, and the remainder at 14%. The total yearly income from the three investments is $347. The sum of the amounts invested at 12% and 13% equals the amount invested at 14%. Determine how much is invested at each rate. 

A. $800 at 12%, $500 at 13%, $1,300 at 14% B. $400 at 12%, $900 at 13%, $1,300 at 14% C. $400 at 12%, $1,300 at 13%, $900 at 14% D. $300 at 12%, $1,000 at 13%, $1,300 at 14% E. $500 at 12%, $1,000 at 13%, $1,100 at 14%

Mathematics

Find the vertex of the parabola.y = 3x2 + 30x + 73

A. (2, 5) B. (-5, -2) C. (5, 2) D. (-2, -5)

Mathematics

Test the vector field F to determine if it is conservative.F = -cos x cos yi + sin x sin yj - sec2 zk

A. Not conservative B. Conservative

Mathematics

Simplify.

A.   
B.  
C.  
D.  

Mathematics