A painting in an art gallery has height h and is hung so that lower edge is a distance d above the eye of an observer (as in the figure). How far from the wall should the observer stand to get the best view? (In other words, where should the observer stand so as to maximize the angle ? subtended at his eye by the painting?)
d. 
Mathematics
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Add or subtract. Simplify the answer.
- 
A. 
B. 
C. 
D. 
Mathematics
Provide an appropriate response.What steps would you take to factor x2 + 11x + 24?
What will be an ideal response?
Mathematics
Represent the vector in the form v = ai + bj whose magnitude and direction angle are given.
= 9; ? = 90°
A. v = 9i
B. v = 9j
C. v = 9i + 9j
D. v = 9
Mathematics
Solve the formula for the indicated variable.
= 
for V (chemistry)
A. V = 
B. V = 
C. V = 
D. V = 
Mathematics