Permutations are written as nPx where n is the number of total choices possible and x is the number of choices that will be used. This is calculated as nPx = n! / (n-x)!.
Permutations represent the number of ways we can choose x objects from n possibilities where the order of selection matters.
<em>hey</em><em> </em><em>buddy</em><em>,</em>
<em>●</em><em>15x</em><em> </em><em>+</em><em> </em><em>5y</em><em> </em><em>=</em><em> </em><em>25</em>
<em>5y</em><em> </em><em>=</em><em> </em><em>25-15x</em>
<em>y</em><em> </em><em>=</em><em> </em><em>(</em><em>25</em><em> </em><em>-</em><em> </em><em>15x</em><em>)</em><em> </em><em>/</em><em>5</em>
<em>y</em><em> </em><em>=</em><em> </em><em>5</em><em> </em><em>-</em><em> </em><em>3x</em>
I think it’s 2 5/9. You might want someone to double check it, though.
Answer:
D
Step-by-step explanation:
The best bet would be D because if its going counterclockwise 360 degrees then it would make a full rotation going back to the same position although I would work out the problem to the best of your ability just to make sure because I'm not entirely sure about my answer.
The length of the shadow is 14.2 m
Right angle triangle:
Right angle triangle has one of its sides as 90 degrees.
The height of the building is the opposite side of the triangle.
The distance from the top of the building to the tip of the shadow is 35 m is the hypotenuse side.
The length of the shadow is the adjacent side of the triangle.
Therefore,
c² = a² + b²
b² = 35² - 32²
b² = 1225 - 1024
b² = 201
b = √201
b = 14.17
b = 14.2 m
Hence the length of the shadow is 14.2 m.
learn more about right triangle here:
brainly.com/question/4278699
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