Evaluate the root function at the given x-value. Round to the nearest hundredth when appropriate.f(x) = 
, x = -19
A. 2.09
B. -2.26
C. 2.26
D. Undefined
Answer: D
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Solve the problem.Find the value of b for which 1 - eb + e2b - e3b + . . . = 6.
A. ln 7
B. ln 6
C. ln 
D. ln 
In order to answer the given question, which of the following types of study would be the most appropriate: an experiment without blinding, an experiment with single blinding, an experiment with double blinding, an observational study, or a case-control study?Does the new medication relieve depression?
A. Observational study B. Case-control study C. Experiment with single blinding D. Experiment without blinding E. Experiment with double blinding
Write the sentence as an equation. Let the variable x represent the number.Adding 2 to the product of 4 and a number equals 22.
A. 4x + 2 = 22
B. 4x + 22 = 2
C. 
+ 2 = 22
D. 2x + 4 = 22
Provide an appropriate response.Explain what is wrong with the following solution for the equation 
in the interval 
cos 2? = 
cos ? = 
? = 
or ? = 
-17.0px;" />
What will be an ideal response?