Carnegie could cut his costs because he owned the supply of raw materials and the means of production and distribution. Is the answer to your question
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Answer:
- Length of ladder= 11 meter
Distance from foot of ladder to base of wall = 4 meter
Let height of Wall up to which Ladder reach = h meter
By using Pythagorean theorem :
- ⇒(Length of ladder)²=(Height of Wall up to which Ladder reach)² + ( Distance from foot of ladder to base of wall)²
⇒(11)²=(Height of Wall up to which Ladder reach)²+4²
Subtracting 16 from both sides
⇒121 -16 = (Height of Wall up to which Ladder reach)²
⇒105 = (Height of Wall up to which Ladder reach)²
⇒ Height of Wall up to which Ladder reach
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