Answer:
see explanation
Step-by-step explanation:
Using the identity
tan²x = sec²x - 1
Consider left side
sec²x + tan²x
= sec²x + sec²x - 1
= 2sec²x - 1
= right side , thus verified
your answer is 53 1/4.
There are 7 days in a week. multiply 15 1/4 by 7. you should get 106 3/4. subtract that from 160, and you should be left with 53 1/4. I hope this helped :))
Have fun but I think it is b and e
Answer:
d(apart are the ships)=42.8 meters
Step-by-step explanation:
Given data
h (height)=38m
Ф₁=53°
Ф₂=28°
d(how far apart are the ships)=?
Solution
d₅₃°(distance to ship at 53°)=h/tanФ₁
d₅₃°=38/tan(53°)
d₅₃°=28.6m
now
d₂₈°(distance to ship at 28°)=h/tanФ₂
d₂₈°=38/tan(28°)
d₂₈°=71.4m
d(apart are the ships)=d₂₈°-d₅₃°
d(apart are the ships)=71.4-28.6
d(apart are the ships)=42.8 meters
