Simplify the polynomial by combining like terms.9x + 5x
A. 14x
B. 7x
C. -4x
D. 14x2
Answer: A
Mathematics
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Simplify using order of operations.
A. -1940 B. -320 C. 320 D. 1940
Mathematics
Establish the identity.sin3(3x) = 
(sin(3x))(1 - cos(6x))
What will be an ideal response?
Mathematics
Write a system of inequalities whose solution set is the region shown.
A. y ? 2x + 4
y ? 
x + 2
B. y ? -2x + 4
y ? - 
x + 2
C. y ? -2x + 4
y ? - 
x + 2
D. y ? 2x + 4
y ? 
x + 2
Mathematics
Find the domain of the rational expression. 
A. {x|x is a real number} B. {x|x is a real number and x ? -5 and x ? 5 and x ? -1} C. {x|x is a real number and x ? -5 and x ? 5} D. {x|x is a real number and x ? -1 and x ? 5}
Mathematics