REFRESH
Mastery Test
Cost of Serving School Lunches:
3 Companies
How much would a school save by using
Company A instead of Company C to serve
800 students?
350
Click on the correct answer.
3000
$600
cost
2500
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$300
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500
$450
200
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600
number of students served
Company A
Company B
Company C
Question 8 of 10

Apinhole camera is made out of a light-tight box with a piece of film attached to one side and pinhole on the opposite side. the optimum diameter d(in millimeters) of the pinhole can be modeled by d=1.9[ (5.5 x 10^-4) l) ] ^1/2, where l is the length of the camera box (in millimeters). what is the optimum diameter for a pinhole camera if the camera box has a length of 10 centimeters