Decide whether the equation is an identity, a conditional equation, or a contradiction. Give the solution set.4x + 9(x + 1) + 2 = 11 - 6x
A. Conditional; {0}
B. Contradiction; ?
C. Conditional; {1}
D. Identity; {all real numbers}
Answer: A
Mathematics
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A. -9x9 + 8x8 - x7 + 15x4 - 18x + 4 B. -x9 - x7 + 11x4 + 4 C. -9x9 + 8x8 - 7x7 + 15x4 + 4 D. -9x9 + 8x8 - 7x7 + 11x4 - 18x + 4
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Solve the inequality. Express your answer using interval notation.|5x + 2| > 3
A. 
B. (-?, -1) or 
C. (-?, -1] or 
D. 
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Find the following using a calculator. Round to four decimal places.ln 66,600,000
A. 0.0553 B. 18.0142 C. 7.8235 D. 6.5013
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