Evaluate the expression, given x = -2, y = 3, and a = -4.
A. - 1
B. 
C. 
D. 
Answer: B
Mathematics
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Use the square root property to solve the equation.(x + 2)2 = 20
A. {-2 - 2
, -2 + 2
}
B. {-2 - 2
, -2 + 2
}
C. {-2
, 2
}
D. {2
- 2, 2
+ 2}
Mathematics
Simplify.
- 
- 
- 
A. 1
B. 27
C. 
D. 
Mathematics
Solve the problem.The following table shows the number of species listed as threatened or endangered in selected countries. Which country has 5 times as many species listed as Country B, which lists 130 species? 
A. Country D B. Country A C. Country C D. There is not enough information given.
Mathematics
Find the root.
A. 4.264 B. 9 C. 3 D. Not a real number
Mathematics