Answer: the height of the flagpole is 21 ft
Step-by-step explanation:
Since the angle of elevation to the top of the flagpole is 40°, a right angle triangle is formed. The height of the flagpole represents the opposite side of the right angle triangle. Your distance from the base of the flagpole represents the adjacent side of the right angle triangle. Therefore, to determine the height of the flagpole, x ,we would apply the tangent trigonometric ratio which is expressed as
Tan θ = opposite side/adjacent side
Tan 40 = x/25
x = 25tan40 = 25 × 0.8391
x = 20.98
x = 21.0 ft to the nearest tenth.
Answer:CD = x = 4 units
Explanation:We are given that the two triangles are similar. This means that we can set the similarity proportionality as follows:

W e have:
BC = 20 - x
AC = 20
CD = x
CE = 5
Substitute in the above proportionality and solve for x as follows:

4x = 20 - x
5x = 20
x = 4
Based on he above:
CD = 4 units
BC = 20 - x = 20 - 4 = 16 units
Hope this helps :)
The interest that Brain would receive is $12.03.
<h3>How much interest would Brain receive?</h3>
The interest received is a function of the amount saved, interest time and the length of time the money was saved.
Interest = amount saved x number of months x (annual interest rate / 12)
$875 x 3 x (0.055 / 12) = $12.03
To learn more about interest, please check: brainly.com/question/26164549
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A rational expression is undefined if the denominator is zero. Since the denominator is
, the expression is undefined if
