Solve the equation. Give a general formula for all the solutions.cos(2?) = 
A. 
B. 
C. 
D. 
Answer: C
Mathematics
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Use the graph to determine the function's domain and range. Write the domain and range in interval notation.
A. domain: (-?, ?)
range: y = -3
B. domain: (-?, ?)
range: (-?, ?)
C. domain: x = - 
range: (-?, ?)
D. domain: x = - 
range: y = -3
Mathematics
Solve.(7x - 9)(7x - 5) = 0
A. - 
, - 
B. 
, 
C. 
, 
D. 
, 
Mathematics
Use the figure to solve the inequality.
f(x) ? g(x)
A. {x|x < -1 or x > 3}; (-?, -1) or (3, ?) B. {x|-1 < x < 3}; (-1, 3) C. {x|x ? -1 or x ? 3}; (-?, -1] or [3, ?) D. {x|-1 ? x ? 3}; [-1, 3]
Mathematics
Multiply.-5(-3)(6)
A. -90 B. 190 C. 90 D. 80
Mathematics