Two vectors a and b are given. (a) Find a vector perpendicular to both a and b. (b) Find a unit vector perpendicular to both a and b. a = 3j -5k, b = i + 2k
What will be an ideal response?
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Mathematics
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The distance d from the point (x1, y1) to the line Ax + By = C is given by the formula 
Find the exact distance from the given point to the given line.(-2, 7), 5x + 12y = 8
A. 
B. 6
C. 
D. 
Mathematics
Find the sum.-526 + 271
A. - 255 B. -797 C. 155 D. 255
Mathematics
Identify the center and vertices of the hyperbola.
A. center: 
vertices: 
B. center: 
vertices: 
C. center: 
vertices: 
D. center: 
vertices: 
E. center: 
vertices: 
Mathematics
The concentration of hydronium ions in a solution is 
. Find the pH of the solution. Round to the nearest tenth.
A. 7.5 B. 7.4 C. 7.3 D. 7.2 E. None of these
Mathematics