Answer: The answer is 381.85 feet.
Step-by-step explanation: Given that a window is 20 feet above the ground. From there, the angle of elevation to the top of a building across the street is 78°, and the angle of depression to the base of the same building is 15°. We are to calculate the height of the building across the street.
This situation is framed very nicely in the attached figure, where
BG = 20 feet, ∠AWB = 78°, ∠WAB = WBG = 15° and AH = height of the bulding across the street = ?
From the right-angled triangle WGB, we have

and from the right-angled triangle WAB, we have'

Therefore, AH = AB + BH = h + GB = 361.85+20 = 381.85 feet.
Thus, the height of the building across the street is 381.85 feet.
Answer:
오늘하루도 트친해요수고하셨습니다 ㅊ풔ㅓㅎ나지금너무배고파죽겠는데난지금바로응모하세요!
it literally gave you the equation lol
y= 6x + 1/2
One angle is inside a right triangle
Since the spinner has 5 slots it contains 3 odd and 2 evens,
this can be expressed as
, cross multiply and we get

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