Solve the problem.Find a unit vector normal to the plane containing u = -i + 3j - 5k and v = 2i - j + 6k.
What will be an ideal response?
i - 
j - 
k or - 
i + 
j + 
k
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Provide an appropriate response.Use a calculator to find cos 2.31 rounded to the nearest ten-thousandth.
A. -1.4843 B. 0.9992 C. 1.0008 D. -0.6737
Find the domain and range of the relation.Women's Shoe Sizes
A. domain: {20, 26}; range: {3, 9} B. domain: { 3, 4, 5, 6, 7, 8, 9 }; range: {20, 21, 22, 23, 24, 25, 26} C. domain: { 3,9 }; range: {20, 26} D. domain: {20, 21, 22, 23, 24, 25, 26}; range: { 3, 4, 5, 6, 7, 8, 9 }
The foci F1 and F2, the vertices V1 and V2, and the endpoints U1 and U2 of the minor axis are as labeled in the figure. Graph the ellipse and find its standard equation. (The coordinates of V1, V2, U1, and U2 are integers, and the coordinates of F1 and F2 are given.)
A. 
+ 
= 1
B. 
- 
= 1
C. 
- 
= 1
D. 
+ 
= 1
Does the system have a unique solution, no solution, or many solutions?
A. A unique solution B. No solution C. Many solutions