A ladder a = 20 feet long is leaning against the wall of a house (see figure).The base of the ladder is pulled away from the wall at a rate of b = 4 feet per second.How fast is the top of the ladder moving down the wall when its base is 13 feet from the wall? Round your answer to two decimal places.
A)5.00
B)-6.86
C)-3.42
D)6.86
E)-6.00

Question

A ladder a = 20 feet long is leaning against the wall of a house (see figure).The base of the ladder is pulled away from the wall at a rate of b = 4 feet per second.How fast is the top of the ladder moving down the wall when its base is 13 feet from the wall? Round your answer to two decimal places. ​  ​
A)5.00 
B)-6.86 
C)-3.42 
D)6.86 
E)-6.00

Quizplus · Accepted Answer

The Answer of A ladder a = 20 feet long is leaning against the wall of a house (see figure).The base of the ladder is pulled away from the wall at a rate of b = 4 feet per second.How fast is the top of the ladder moving down the wall when its base is 13 feet from the wall? Round your answer to two decimal places. ​  ​
A)5.00 
B)-6.86 
C)-3.42 
D)6.86 
E)-6.00

A Ladder a = 20 Feet Long Is Leaning Against