Answer:
Step-by-step explanation:
A length of rope is stretched between the top edge of a building and a stake in the ground. The head of the stake is at ground l
evel. The rope also touches a tree that is growing halfway between the stake and the building. If the the building is 36 feet tall, how tall is the tree?
2 answers:
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Answer:
First option:
Second option:
Fourth option:
Step-by-step explanation:
Rewrite each equation in the form and then use the Discriminant formula for each equation. This is:
1) For :
Then:
Since this equation has no real solutions, but has two complex solutions.
2) For :
Then:
Since this equation has no real solutions, but has two complex solutions.
3) For :
Then:
Since this equation has one real solution.
4) For :
Then:
Since , this equation has no real solutions, but has two complex solutions.