Mathematics: (HELP) A board with a length of 15 feet is leaning against a vertical wall. The angle that the board forms with the ground is 53.13° Use a trigonometric function to determine the distance from the bottom of the board to the edge of the wall. In at least four sentences, explain why you chose your specific function and how it applies to the reference angle A. Be sure to include the key vocabulary words cosine , ratio , adjacent side , hypotenuse and angle measure in your response. Describe each computational

(HELP) A board with a length of 15 feet is leaning

edandjill24

25.01.2022

9 ft

Step-by-step explanation:

-Let x be the length of the base dimension.

-We apply the cosine ratio:

$Cos\ \theta=\frac{Adjacent}{Hypotenuse}$

-We substitute the given values to solve for x as follows:

$Cos \ \ \theta=\frac{Adjacent}{Hypotenuse}\\\\Cos \ \ 53.13\textdegree=\frac{x}{15}\\\\x=15\times Cos \ \ 53.13\textdegree\\\\=9.0000\ ft$

Hence, the base length is 9.00 ft

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owlgirl554

08.05.2022

=7/4

Step-by-step explanation: hope this help

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