Use a double-angle identity to evaluate the expression.cos 
, x > 0
A. 1 + 
B. 1 - 2x2
C. 
D. 1 + 
Answer: C
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Find the equilibrium solution of the equation of change 
. Consider only positive values of x.
?
A. 
B. 
C. 
D. 
Solve the problem.The Mathematics Department is holding an election for department chair. Each member ranks the candidates from first to third. The preference table below shows the results of the ballots with candidates Clark (C), Jones (J), and Smith (S). 
If the Borda count method is used to determine the winner, is the majority criterion satisfied?
A. Yes B. No
Find the balance due on the maturity date of the note. Find the total amount of interest paid on the note. Use the United States Rule.Principal: $38,400Interest: 9.2%Time (days): 180Partial payment: $20,000 on day 100
A. $19,777.57; $1377.57 B. $18,642.69; $242.69 C. $20,421.19; $2421.19 D. $22,101.51; $3701.51
Graph the equation.2y - 18x = -18
A. 
B. 
C. 
D. 