Tom is standing on the deck of a pool. The bottom of the pool is -6 feet from the deck. What is the depth of the pool?
2 answers:
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Answer:
Step-by-step explanation:
General equation of geometric sequence:
Given:
- a₁ = 100
- a₂ = 20
- a₃ = 4
Common ratio:
Therefore:
Answer:
1. wire is approx. 143.96 ft
2. pole is approx. 106.55 ft
Step-by-step explanation:
Mapping the information on the SOHCAHTOA picture below:
Φ = 46
wire = hypotenuse
adjacent side = 100
CAH is most suitable:
cos 46° = 100/wire => wire = 100/cos 46 ≈ 143.96
pole = opposite side + 3
TOA is most suitable:
tan 46° = (pole-3)/100 => pole = 3 + 100 * tan 46 ≈ 106.55
