If 
and 
, find cos ?.
What will be an ideal response?
Mathematics
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Find the divergence of the field F.F = 
A. 
B. 
C. 0
D. 
Mathematics
The line graph shows the recorded hourly temperatures in degrees Fahrenheit at an airport. 
At what time was the temperature its lowest?
A. 1 p.m. B. 4 p.m. C. 6 p.m. D. 9 a.m.
Mathematics
Solve the system of equations. If the system is dependent, express solutions in terms of the parameter z.x + 2y + 4z = -13 5y + 5z = -5 z = -4
A. (-3, 3, -4) B. (-3, -4, 3) C. (-4, 3, -3) D. No solution
Mathematics
Solve the problem.Which of the following vectors is parallel to v = 9i + 5j?
A. w = 45i - 25j
B. w = 
i - 
j
C. w = - 
i + 
j
D. w = 
i + 
j
Mathematics