Find the length and direction (when defined) of u × v.u = -4i - 7i + 6k, v = 0
A. 0; no direction
B. 
; 
(-4i - 7i + 6k)
C. 0; 
(-4i - 7i + 6k)
D. 0; -4i - 7i + 6k
Answer: A
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Provide an appropriate response.Find the direction in which the function is increasing most rapidly at the point P0.f(x, y, z) = x
, P0(1, 1, 2)
A. 
B. 
C. 
D. 
Solve.5x(8x - 5) = 0
A. x = 
, 
, 0
B. x = 
, 
C. x = 
, 0
D. x = - 
, 0
Answer the question.What minimum information is sufficient to determine the congruency of two equilateral triangles?
A. None of these. B. The measures of one angle of each triangle must be equal. C. The lengths of one side of each triangle must be equal. D. The lengths of two sides and the included angles of each triangle must be equal.
Use the determinant feature of a graphing calculator to solve the system by Cramer's rule . (Round to one decimal place.)2.7x - 2.1y + 4.0z = 3.14.1x - 7.0y + 0.2z = -5.04.1x - 2.5y + 3.3z = 7.1
A. {(28.6, 22.4, -1.3)} B. {(3.6, 2.8, -0.2)} C. {(7.1, 5.6, -0.3)} D. {(14.3, 11.2, -0.7)}