Solve the problem.Yearly sales of an electronic device S(t), in millions of dollars, t years after 1998 can be estimated by S(t) = 200 ? 2t .Determine the year in which sales reached $1200 million.
A. About 2000
B. About 2002
C. About 2001
D. About 1999
Answer: C
Mathematics
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A. 
B. - 
C. 
D. 
Mathematics
Use a truth table to determine whether the two statements are equivalent.~p ? ~q and ~(p ? q)
A. Yes B. No
Mathematics
Verify that each equation is an identity.(sec ? + tan ?)2 = 
What will be an ideal response?
Mathematics
Use Descartes's rule of signs to discuss the possibilities for the roots of the equation. Do not solve the equation.4x8 + 7x6 + 6x4 + 5x2 + 4 = 0
A. 
B. 
C. 
D. 
Mathematics