Solve the equation.
x = 
A. 
B. {-2}
C. 
D. {2}
Answer: B
Mathematics
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Consider a function 
. If the graph of 
is above the horizontal axis, what can be said about the graph of f?
?
A. The graph of f is above the horizontal axis. B. The graph of f is below the horizontal axis. C. The graph of f is increasing. D. The graph of f is a straight line.
Mathematics
Find the value of the constant k so that the function is a probability density function in the indicated interval.
?
What will be an ideal response?
Mathematics
Solve the exponential equation using the method of "relating the bases" by first rewriting the equation in the form 
4(5 - 3x) = 
A. {-3}
B. {3}
C. {128}
D. 
Mathematics
How many permutations are there of the word? ? ESCHEW ?
A. 350 B. 570 C. 380 D. 180 E. 360
Mathematics