Calculate the direction of 
and the midpoint of line segment P1P2.P1(2, -1, 5) and P2(4, 5, 8)
A. 
i + 
j + 
k; 
B. 
i + 
j + 
k; 
C. 
i + 
j + 
k; 
D. 
i + 
j + 
k; 
Answer: A
Mathematics
You might also like to view...
Determine whether the argument is valid or invalid by using a truth table.p ? qp ? r----? ~ r ? q
A. 
The argument is valid.
B. 
The argument is invalid.
C. 
The argument is invalid.
D. 
The argument is invalid.
Mathematics
Solve the problem.The number of vertices in a tree with 57 edges is
A. 58. B. 56. C. 57. D. 257. E. none of these
Mathematics
Find all solutions.x3 - 7x2 + 10x = 0
A. {5, 2} B. {-5, -2} C. {0, 5, 2} D. {0, -5, -2}
Mathematics
Solve.The seats in a lecture hall are arranged in 13 rows with 9 seats in each row. How many seats are in this lecture hall?
A. 108 seats B. 126 seats C. 127 seats D. 117 seats
Mathematics