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Rzqust [24]
2 years ago
15

A new bridge structure requires triangles that are in a ratio of 1:1. if ac = 5x − 5 and ec = 3x 9, find the distance between th

e top and bottom of the bridge, in feet.
Mathematics
1 answer:
Dmitry_Shevchenko [17]2 years ago
4 0

Similar triangles have equal side lengths and measure of angles.

The distance between the top and bottom of the bridge, is 60 feet

The ratio of the triangle is 1 : 1.

So, we have:

This gives

Collect like terms

Divide both sides by 2

So, the required distance is:

Substitute 7 for x

Hence, the required distance is (c) 60 ft

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Answer:

{x ∈ ℝ : x ≥ π/6 +2πn and x ≤ π/6 + 2πn and n ∈ ℤ}

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sinx can run from -1 to +1

2sinx can run from -2 to +2

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However, the square root is imaginary when x < 0. So, the condition is

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