Decide on a suitable restriction on the domain so that the function is one-to-one and the range is not changed.f(x) = (x + 19)2
A. [-19, 19)
B. [19, ?)
C. [-19, ?)
D. (-19, 18)
Answer: C
Mathematics
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?If x is the LCM of y and z, and given that w does not divide x or y, then which of the following is not necessarily true?
A. x is the LCM of y and wz. B. ?wx is the LCM of wy and z. C. ?wx is the LCM of w, y, and z. D. ?wx is the LCM of w, wy, and z. E. ?None of the above.
Mathematics
Evaluate the integral.
ln 7x dx
A. 137.72 B. 134.25 C. -38.11 D. 162.03
Mathematics
Graph the function. Determine the symmetry, if any, of the function.y = 
A. Symmetric about the y-axis
B. No symmetry
C. No symmetry
D. Symmetric about the y-axis
Mathematics
Provide an appropriate response. If 445 is decreased by 55%, what is the new amount?
A. 818 B. 200.25 C. 122 D. 244.75
Mathematics