Simplify. Assume all variables are non-negative real numbers.
A. 21
B. 7
C. 3
D. 7
Answer: C
Mathematics
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Find an equation of an ellipse satisfying the given conditions.Vertices: (0, -10) and (0, 10); length of minor axis: 6
A. 
+ 
= 1
B. 
+ 
= 1
C. 
+ 
= 1
D. 
+ 
= 10
Mathematics
Simplify.68 - (30 - 6)
A. 24 B. 44 C. 38 D. 32
Mathematics
Insert either < or > to make a true statement.0.2 ___ 0.5
A. < B. >
Mathematics
Subtract and simplify.
- 
A. 
B. 
C. 
D. 
Mathematics