Solve the equation. Express radicals in simplest form.
x2 + 
x - 
= 0
A. {-1}
B. ?
C. 
D. 
Answer: D
Mathematics
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Plot the point whose polar coordinates are given.(2, ?/2)
A. 
B. 
C. 
D. 
Mathematics
Round off the approximate number as indicated.2090 2 significant digits
A. 2000 B. 2100 C. 290 D. 2200
Mathematics
Add. 9 + (-16) + 8 + (-13) + 9 + (-13)
A. -68 B. 0 C. -16 D. -32
Mathematics
Simplify.
A. 4
B. 16
C. 4
D. 4 
Mathematics