<h2>
The top of the ladder is descending at 0.3 m/s.</h2>
Step-by-step explanation:
By Pythagoras theorem we know that
Hypotenuse² = Base² + Perpendicular²
h² = b² + p²
We have for ladder
h = 5 m
b = 3 m
5² = 3² + p²
p = 4 m

Differentiating h² = b² + p² with respect to time

The top of the ladder is descending at 0.3 m/s.
Answer:
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Step-by-step explanation:
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D is your answer
1/3 of 18 is 6, so 2/3 would be 12
Answer:
Answer: -18 + -3h
More simple: -18 - 3h
Step-by-step explanation:
- -3 × 6 = -18
- -3 × h = -3h
- Put them together: -18 + -3h