The chemical acidity of a solution is measured in units of pH: , where  is the hydrogen ion concentration in the solution. What is 

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A. 3.800
B.
C.

D.

E.


Answer: E

Mathematics

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Solve the exponential equation and express approximate solutions to the nearest hundredth.8 25x + 3 = 34 x + 8 

A. x = 0.75 B. x = 0.83 C. x = 0.91 D. x = 0.45 E. x = 8.48

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Find the volume of the solid generated by revolving the shaded region about the given axis.About the x-axis

A. ?
B. ?
C. ?
D. ?

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Solve the system by the addition method.

A. {(2, 0), (-2, 0)} B. {(3, 0), (-3, 0)} C. {(0, 3), (0, -3)} D. {(0, 2), (0, -2)}

Mathematics

Simplify the factorial expression.

A.
B. 56
C.
D. 2!

Mathematics