Use the formula for 
to evaluate the expression.
A. 10,080
B. 4
C. 40,320
D. 8
Answer: D
Mathematics
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Show that the equation is not an identity by finding a value of x for which both sides are defined but not equal.sin 5x + sin 7x = sin 11x
A. 
B. 0
C. 2?
D. ?
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Factor.x2 - 3x - 54
A. (x - 6)(x + 1) B. Prime C. (x - 6)(x + 9) D. (x + 6)(x - 9)
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Factor the trinomial, or state that the trinomial is prime.x2 + 6x - 55
A. (x + 11)(x - 5) B. (x - 11)(x + 5) C. prime D. (x - 11)(x + 1)
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