Perform the indicated operation.(9x9 + 8x6 - 2x3 + 11) - (4x9 - 8x4 + 11x3 - 2)
A. 5x9 + 8x6 + 8x4 - 13x3 + 13
B. -5x9 + 8x6 + 8x4 - 13x3 + 13
C. -5x9 + 8x6 - 8x4 - 13x3 + 13
D. 5x9 + 8x6 - 8x4 - 13x3 + 13
Answer: A
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Find the axis of symmetry of the function.f(x) = 9x - x2
A. x = - 
B. x = 
C. x = - 
D. x = - 
Express the number in scientific notation.2500
A. 2.5 × 10-2 B. 2.5 × 10-3 C. 2.5 × 103 D. 2.5 × 102
Solve the system by substitution. If the system is inconsistent or has dependent equations, say so.x + y = 1y = 2x - 5
A. {(-1, 2)} B. {(1, 1)} C. {(3, -2)} D. {(2, -1)}
Use the pictograph to answer the question.For selected countries, this pictograph shows approximately how many kilograms of seafood are consumed by each person (per capita) annually.
What is the approximate seafood consumption in Country E?
A. 5137.5 kilograms B. 5754 kilograms C. 4932 kilograms D. 5548.5 kilograms