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Sonbull [250]
3 years ago
15

A 15-foot ladder must make an angle of 30° with the ground if it is to reach a certain window. What angle must a 20-foot ladder

make with the ground to reach the same window?
a. 22 degrees
b. 38 degrees
c. 42 degrees
d. 48 degrees

Mathematics
1 answer:
Tju [1.3M]3 years ago
3 0
The answer is A) 22. Not 48.

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Simplify this equation, also what is the sign beside 150 and what does it do
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In a class of 24 students , 13 students sold over 150 raffle tickets each and the rest of the class sold about 60 raffle tickets
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8 0
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Find the value of xxx in the triangle shown below. Choose 1 answer: Choose 1 answer: (Choice A) A x=\sqrt{21}x= 21 ​ x, equals,
Keith_Richards [23]

Answer:

x = 15.8114

Step-by-step explanation:

The complete question is:

"The problem is asking for value of x. Two right triangles side by side, the altitude is 9. The bottom of whole triangle is 25. One side is 15 and the other side is x. What is the value of x?"

Solution:-

- Develop a diagram for the information given " Two right triangles side by side" The altitude i.e height (common to both triangle ) = 9. The total base length of both triangles is = 25. One side is 15 and other side is x.

                                x

                             x x  x

                           x   x    x

                         x     x       x  

                       x       x          x       x = ?

                     x         x             x

           15     x          x                x

                 x             x   9              x

               x               x                      x

             x                 x                         x

           x                   x                            x

         x                     x                               x

       x                       x                                  x

  B  x x x x x x x x x x x x x x x x x x x x x x x  C

                  y           D                  25-y

- We will first determine the value of "y" using the left hand side triangle and apply pythagorean theorem. Where, H = 15 , P = 9 , B = y.

                                H^2 = P^2 + B^2

                                15^2 = 9^2 + y^2

                                y = √(225 - 81 )

                                y = 12

- Now we can use the value of y and apply pythagorean theorem on right hand side triangle with sides. H = x , P = 9 , B = 25-y = 25 - 12 = 13.

                               H^2 = P^2 + B^2

                               x^2 = 9^2 + 13^2

                               x = √( 81 + 169 )

                               x = 15.8114

3 0
3 years ago
Read 2 more answers
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