Graph the function.y = 4 cos 2x - 4 cos 3x
A. 
B. 
C. 
D. 
Answer: B
Mathematics
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Add or subtract. Simplify your answer to lowest terms.
+ 
- 
A. 
B. 
C. 
D. 
Mathematics
Find the Cartesian product or cardinal number as requested.n(A × B) = 90n(B) = 10Find n(A).
A. 80 B. 100 C. 10 D. 9
Mathematics
Solve the problem.The side of an equilateral triangle is 
shorter than the side of a square. The perimeter of the square is 
more than the perimeter of the triangle. Find the length of a side of the triangle.
A. 28 inches B. 26 inches C. 18 inches D. 25 inches
Mathematics
Find the probability.What is the probability that a card drawn from a deck of 52 cards is not a diamond?
A. 
B. 
C. 
D. 
Mathematics