Use the distance formula to find the length of the line segment. Express your answer as a simplified radical. 
A. 9
B. 9
C. 3
D. 3
Answer: D
Mathematics
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Solve the problem.What is the ratio of the surface areas for a pair of similar hemisphere when the ratio of the radii is 3 : 4?
A. 9 : 16 B. 3 : 4 C. 27 : 64 D. Not enough information given
Mathematics
Decide whether the polynomial is written in descending powers, ascending powers or neither.-x6 + 4x3 + 8x + 9
A. Ascending B. Descending C. Neither
Mathematics
Find the area.
A. 10.8 m2 B. 21.6 m2 C. 29.12 m2 D. 58.24 m2
Mathematics
Simplify.(3 + 8)2
A. 67 B. 17 C. 73 D. 121
Mathematics