The principle of a box camera in taking a picture is shown.The rays of light from the object AB pass through the opening L and form an inverted image AB on the film. How far from a 30 tree must L be placed to produce a 4" image on the film if the film is 8" behind L?
15'
Mathematics
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Graph the function, showing all asymptotes (those that do not correspond to an axis) as dashed lines. List the x- and y-intercepts.f(x) = 
A. No x-intercepts, y-intercept: 
;
B. No x-intercepts, y-intercept: 
;
C. No x-intercepts, y-intercept: 
;
D. No x-intercepts, y-intercept: 
;
Mathematics
Plot the point having the given polar coordinates.
A. 
B. 
C. 
D. 
Mathematics
Find the unknown length x for the given similar triangles. 
A. x = 18 B. x = 180 C. x = 0.8 D. x = 8
Mathematics
Find percent notation for the number in decimal notation.In one city, 0.820 of those polled said they would not vote for the incumbent in the upcoming congressional election.
A. 0.0820% B. 8.2% C. 82% D. 0.820%
Mathematics