Evaluate the expression or indicate that the root is not a real number.
A. 14,641
B. 11
C. 
D. Not a real number
Answer: D
Mathematics
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Find the magnitude of u × v and the unit vector parallel to u × v in the direction of u × v.u = - 
i + 
j + k, v = i + j + 2k
A. 2
; 
i + 
j - 
k
B. 8; 
i - 
j - 
k
C. 8; 
i - 
j + 
k
D. 2
; - 
i + 
j - 
k
Mathematics
A bicycle pedal is pushed by a foot with a force of a-N as shown. The shaft of the pedal is 12 cm long. Find the magnitude of the torque about P correct to two decimal places.
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Mathematics
Solve the radical equation. Check all proposed solutions.x - 
= 4
A. x = 9 B. x = 1, 2 C. x = -1 D. x = 2, 9
Mathematics
Find the slope of the line containing the two given points.(1977, 12) and (1987, 14)
A. 
B. 
C. 5
D. 0
Mathematics