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Romashka-Z-Leto [24]
3 years ago
10

How to solve for h? I don't understand it

Mathematics
1 answer:
Vesnalui [34]3 years ago
6 0
H is the altitude of a right triangle, so h²=AD*DC=(20-4)*4=64
h=√64=8
D is the correct answer. 
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Like solving equations, inequalities should be solved using inverse operations. However, unlike equations, when you divide or multiply by a negative the sign changes.

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