Archive for the ‘ Mathematics ’ Category

how do i find the size of an object based on the size that I see it as?

Brett asked:


This is like a golf pin range finder. I know the height of the object, 28 inches, and I know that i'm looking through the range finder tube at about 12 inches. What would the height of the object be when I'm looking thru the tube at 20 yards (720 inches)?

Isiah

This entry was posted on Wednesday, March 25th, 2009 at 6:44 pm .

please help with math on this hard problem?

star wars freak asked:


A laser range finder is able to compute a distance up to 3 km with an accuracy of 99.5%. What possible error is there in a reported measurement of 2500 meters?
A less than 5 meters
B between 5 an 10 meters
C between 10 and 15 meters
D over 20 meters

Doyle

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This entry was posted on Sunday, January 18th, 2009 at 9:09 am .