Answer:
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Step-by-step explanation:
The length of guy wire needed to make an angle of 30° with the ground is 310 feet. The angle between the end of the shadow and the vertical side of the building is 23°
<h3>What is
trigonometric ratio?</h3>
Trigonometric ratio is used to show the relationship between the sides and angles of a right angled triangle.
a) Let l represent the length of the guy wire.
sin(30) = (170 - 15) / l
l = 310 feet
b) Let Ф represent the angle, hence:
tanФ = 100/230
Ф = 23°
The length of guy wire needed to make an angle of 30° with the ground is 310 feet. The angle between the end of the shadow and the vertical side of the building is 23°
Find out more on trigonometric ratio at: brainly.com/question/24349828
Answer:
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Step-by-step explanation:
Answer:
A. x=3
Step-by-step explanation:
4(5x+3)=14x+30
multiply 4 to 5x and multiply 4 yo 3
20x+12=14x+30
move terms
20x-14x=30-12
subtract 20x to 14x and subtract 30 to 12
6x=18
divide both sides by 8
x=3
