Evaluate the indicated function with the given information.Find the value of cos 
if sin ? = 
(90° < ? < 180°).
A. 
B. 
C. 
D. 
Answer: D
Mathematics
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Solve the exponential equation.3x2 + 7 x = 
A. 3 , -4 B. 3 , 4 C. -3 , 4 D. -3 , -4
Mathematics
Find the LCD for the fractions in the list.
, 
A. 4a2 - 7 B. 4a(a - 7) C. 4a - 7 D. 4a2 - 28
Mathematics
Graph the inequality.9x2 - 16y2 ? 144
A. 
B. 
C. 
D. 
Mathematics
Solve the problem.Yearly sales of an electronic device S(t), in millions of dollars, t years after 2009 can be estimated by S(t) = 300 ? 2t .Determine the year in which sales reached $1500 million.
A. About 2012 B. About 2010 C. About 2009 D. About 2011
Mathematics