Use the dot product to determine whether the vectors are parallel, orthogonal, or neither.v = i + 
j, w = i - 2j
A. parallel
B. orthogonal
C. neither
Answer: C
You might also like to view...
Use Method II to simplify the complex rational expression.
A. - 
B. - 
C. 
D. 
Solve the problem.The focal length f of a lens with index of refraction n is 
= (n - 1)
where R1and R2 are the radii of curvature of the front and back surfaces of the lens. Express f as a rational expression.
A. f = 
B. f = 
C. f = 
D. f = 
Graph the equation.(x + 1)2 = -8(y - 2)
A. 
B. 
C. 
D. 
Find the center, foci, and vertices of the ellipse.49x2 + 25y2 = 1225
A. center at (0, 0)
foci at (- 2
, 0) and (2
, 0)
vertices at (-7, 0), (7, 0)
B. center at (0, 0)
foci at (0, -7) and (0, 7)
vertices at (0, -49), (0, 49)
C. center at (0, 0)
foci at (0, 7) and (5, 0)
vertices at (0, 49) and (25, 0)
D. center at (0, 0)
foci at (0, - 2
) and (0, 2
)
vertices at (0, -7), (0, 7)