Solve the problem.For the function f(x, y, z) = x2yz - 2yz2 + x at the point p = (1, -1, 1), find the unit vector for which f is increasing most rapidly.
A. 
i + 
j + 
k
B. 
i + 
j + 
k
C. 
i + 
j + 
k
D. 
i + 
j + 
k
Answer: A
Mathematics
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Solve the equation using the zero product property.(x - 7)(2x + 19) = 0
A. 
B. 
C. 
D. 
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Insert the correct sign of inequality (> or <) between the given numbers.
3.17
A. 
< 3.17
B. 
> 3.17
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Graph the parabola or ellipse. Include the directrix that corresponds to the focus at the origin.r = 
A. 
B. 
C. 
D. 
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Solve the problem.Find the radius of a circle in which a central angle of 
radian determines a sector of area 
meters. Round to the nearest hundredth.
A. 9.42 m B. 177.62 m C. 18.85 m D. 13.33 m
Mathematics