Integrate the function.

A.  + C
B. ln  + C
C. tan-1 5x -  + C
D.  tan-1 5x +  + C


Answer: D

Mathematics

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Evaluate the expression for the given replacement values.  x = 7, y = 4

A.  
B.
C.  
D.  

Mathematics

Use properties of logarithms to expand the logarithmic expression as much as possible. Where possible, evaluate logarithmic expressions without using a calculator.log4

A. log4
B. 3log4- 6log4y
C. 3log4+ 6log4y
D. 6log4- 3log4x

Mathematics

Write a system of equations for the problem, and then solve the system.Two different gasohol mixtures are available. One contains 5% alcohol and the other 12% alcohol. How much of each should be mixed to obtain 1500 gallons of gasohol containing 10% alcohol?Gallons of GasoholPercent (as decimal)Gallons of Pure Gasoholx0.05?y0.12?1500?0.10?

A. 1071 gal 5%, 1071 gal 12% B. 429 gal 5%, 1071 gal 12% C. 625 gal 5%, 875 gal 12% D. 75 gal 5%, 180 gal 12%

Mathematics

Find the zeros of f(x), given that one zero is k.f(x) = 16x4 - 8x3 + 146x2 - 32x + 328k = 2i

A. ±2i,  ± i
B. ±2i, -  ± i
C. ±2i, -  ± i
D. ±2i,  ± i

Mathematics