Simplify.   

A. 3
B.
C.
D.


Answer: D

Mathematics

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Match the equation with the surface it defines. +   +  = 1 

A. Figure 2 B. Figure 1 C. Figure 3 D. Figure 4

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Solve.The population growth of an animal species is described by  where t is measured in months. Find the population of this species in an area 40 month(s) after the species is introduced.

A. 4950 B. 1100 C. 2495 D. 560

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Represent the shaded area in the figure group with a mixed number.

A. 12
B. 3
C. 15
D. 3

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Simplify the expression. Write answer with positive exponents.

A. 27 B. 1 C. 25 D. 47

Mathematics