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taurus [48]
2 years ago
13

Bo is trying to find the height of a radio antenna on the roof of a local building. He stands at a horizontal distance of 20 met

ers from the building. The angle of elevation from his eyes to the roof (point A) is 18°, and the angle of elevation from his eyes to the top of the antenna (point B) is 42°. If his eyes are 1.57 meters from the ground, find the height of the antenna (the distance from point A to point B). Round your answer to the nearest meter if necessary.
​
Mathematics
1 answer:
Romashka-Z-Leto [24]2 years ago
8 0

Answer:

12.5

Step-by-step explanation:

see attached image

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Please help me. I don’t understand
laiz [17]

Answer:

Therefore the Equation and missing value is

\dfrac{3}{4}=\dfrac{1}{6}+x      .............Equation for the Diagram

x=\dfrac{7}{12}

Step-by-step explanation:

Given:

Let Label the Diagram such that

AB =\dfrac{1}{6}

BC =c

AC =\dfrac{3}{4}

To Find:

Equation =?

x = ?

Solution:

Here Total Length is given in Two Parts

one\ part =\dfrac{1}{6}

Second\ part =x

Total =\dfrac{3}{4}

For a Line A-B-C

AC =AB+BC       ..............Line Addition Property

Substituting the values we get

\dfrac{3}{4}=\dfrac{1}{6}+x ...Equation for the Diagram

x = \dfrac{3}{4}-\dfrac{1}{6}\\\\x=\dfrac{18-4}{4\times 6}\\\\x=\dfrac{14}{24}\\\\x=\dfrac{7}{12}

Therefore the Equation and missing value is

\dfrac{3}{4}=\dfrac{1}{6}+x ...Equation for the Diagram

x=\dfrac{7}{12}

3 0
3 years ago
Which of the following statements is not true?
Colt1911 [192]
L-1.5l < 0 is not true
absolute value is the distance away from zero
-1.5 is 1.5 away from zero, so l-1.5l=1.5
1.5 is greater than zero, therefore, l-1.5l<0 is not true

3 0
3 years ago
Read 2 more answers
How do u find the total area
Leya [2.2K]

Answer:

Length Multiplied by Width

Step-by-step explanation:

7 0
4 years ago
I NEED HELP PLEASE, THANKS! :) A commercial passenger jet is flying with an airspeed of 185 miles per hour on a heading of 036°.
NikAS [45]

We are given that the passenger's jet is flying at a speed of 185 miles per hour, with a direction of 36 degrees, and the wind speed being 47 mph with a direction of 120 degrees. From this, you could create a diagram is shown in the attachment.

[ 185 cos 36, 185 sin 36 ]

+ [ 47 cos 120, 47 sin 120 ]

_______________________

[ 185 cos 36 + 47 cos 120, 185 sin 36 + 47 sin 120 ]

√( 4263  + 33988 )^2

= ( About ) √38251 = 195.57 mph

<u><em>Solution = 195.6 mph, 069° </em></u>

6 0
3 years ago
Find the probability of drawing a black face card on the first draw, replacing it and drawing a 9 card on the second draw
timurjin [86]
How many cards are there in your deck? What color are these cards? These are things needed to know to be able to accurately answer this question
8 0
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