Find all angles in [0°, 360°) that satisfy the equation.cot ? = 1
A. {45°, 225°}
B. {225°, 315°}
C. {135°, 225°}
D. {45°, 315°}
Answer: A
Mathematics
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Solve the problem.Ron finds 9 books at a bookstore that he would like to buy, but he can afford only 5 of them. In how many ways can he select 5 of the books to buy? How many ways can he make his selection if he decides that one of the books is a must?
A. 126; 70 B. 3024; 1680 C. 15,120; 1680 D. 7560; 840
Mathematics
Divide.7.4925 ÷ 4.05
A. 0.54054054 B. 18.5 C. 0.05405405 D. 1.85
Mathematics
Write an equation for the piecewise function.
A. f(x) = 
B. f(x) = 
C. f(x) = 
D. f(x) = 
Mathematics
For the pair of functions, find the indicated domain.f(x) = 
, g(x) = x + 5Find the domain of g ? f.
A. (-?, -12) ? (-12, ?) B. (-?, ?) C. (-?, -7) ? (-7, ?) D. (-?, -7] ? [-7, ?)
Mathematics