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A ladder is propped up 3 feet away from the side of a building. The length of the ladder is 8 feet. What is the height of the building? Round to the nearest tenth.
A. 8.5 ft
B. 7.4 ft
C. 7.6 ft
D. 9 ft
 one year ago
 one year ago
A ladder is propped up 3 feet away from the side of a building. The length of the ladder is 8 feet. What is the height of the building? Round to the nearest tenth. A. 8.5 ft B. 7.4 ft C. 7.6 ft D. 9 ft
 one year ago
 one year ago

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acrossBest ResponseYou've already chosen the best response.0
Wow... those are very short buildings...
 one year ago

Ryan06202011Best ResponseYou've already chosen the best response.1
i thought it would be C but i need a 2nd opinion
 one year ago

acrossBest ResponseYou've already chosen the best response.0
Use the Pythagorean theorem\[a^2+b^2=c^2,\]with \(a=3\) and \(c=8\).
 one year ago

surdawiBest ResponseYou've already chosen the best response.0
\[x ^{2}=8 ^{2}3 ^{2}=649\] \[x ^{2}=55\] \[\sqrt{x ^{2}}=\sqrt{55}\] x=7.4
 one year ago
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