Write in expanded notation.90,360
A. 9000 + 300 + 6
B. 90,000 + 3000 + 60
C. 9000 + 30 + 6
D. 90,000 + 300 + 60
Answer: D
Mathematics
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Solve the problem.The ocean surface is at 0 ft elevation. A diver is underwater at an elevation of 
near a rock formation. In this area, the ocean floor has an elevation of -330 ft. The rock formation rises to a peak 249 ft above the ocean floor. How many feet below the top of the rock formation is the diver?
A. 81 ft B. 159 ft C. 90 ft D. 9 ft
Mathematics
Find the domain of the rational function.f(x) = 
A. {x|x ? 3, x ? -5} B. all real numbers C. {x|x ? -3, x ? 5} D. {x|x ? 3, x ? -3, x ? -5}
Mathematics
Multiply.( y + 4 )( y - 4)
A. y2 - 8y - 16 B. y2 - 16 C. y2 + 8y + 16 D. y2 + 16
Mathematics
Factor the perfect square trinomial.
Mathematics