Calculate the direction of 
and the midpoint of line segment P1P2.P1(8, -6, 4) and P2(9, -7, 5)
A. 
i + 
j + 
k; 
B. 
i - 
j + 
k; 
C. 
i - 
j + 
k; 
D. 
i - 
j + 
k; 
Answer: B
Mathematics
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Write the square root as a product of square roots.
A. 
? 
B. 
? 4
C. 17
D. 
? 3
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Tell whether the statement is true or false.Let A = {5, 6, 7, 8, 9, 10}, B = {7, 9, 11}, C = {5, 6, 8, 10}, D = {5, 10}, and 
C ? ?
A. True B. False
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Provide an appropriate response.Explain in your own words why possible solutions of radical equations must be checked.
What will be an ideal response?
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