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sdas [7]
3 years ago
10

Subtract 7x +4x-9 from 5x +10x-5

Mathematics
1 answer:
gizmo_the_mogwai [7]3 years ago
7 0
-4x - 4 would be your answer
STEP BY STEP:

1. (7x+4x-9) - (5x + 10x - 5)
2. (11x -9) - (15x -5)
3. -4x -4
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Step-by-step explanation:

Using trigonometric functions we know that x=rcos(\theta) and y=rsin(\theta) where \theta=angle and r is the hypotenuse of the triangle.

First we will calculate the hypotenuse using the x equation, since we know x = 1 mile (distance from the building on the ground) we have:

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Now we will calculate the height of the building using the y equation and so:

y=rsin(\theta)\\\\y=\frac{1}{cos(2)} \times sin(2) = \frac{sin(2)}{cos(2)}=tan(2)=0.034921mi

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