Subtract the polynomials.(9x7 - 9x6 + 2x5 + 7) - (5x7 - 3x6 - 5x5 - 4)
A. 14x7 - 12x6 - 3x5 + 11
B. 14x7 - 12x6 - 3x5 + 3
C. 4x7 - 6x6 + 7x5 + 11
D. 4x7 - 12x6 - 3x5 + 3
Answer: C
Mathematics
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= 
; - 37
A. Yes B. No
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Write a formula for the nth term of the arithmetic sequence. Use the formula to find the 20th term of the sequence.2, 6, 10, 14, 18, . . .
A. an = 2n - 4; a20 = 36 B. an = 4n - 2; a20 = 78 C. an = n + 4; a20 = 24 D. an = 4n + 2; a20 = 82
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Use the accompanying graph of y = f(x) to sketch the graph of the indicated equation.y = - 
f(x)
A. 
B. 
C. 
D. 
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Use the fundamental identities and appropriate algebraic operations to simplify the expression.cos x (csc x - sec x) - cot x
A. -1 B. 0 C. cos2x - tan2x D. 1
Mathematics