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ANTONII [103]
3 years ago
9

5(x+6)+11=25-3x what is the answer?

Mathematics
1 answer:
Zolol [24]3 years ago
3 0
This is how I did it:
5(x + 6) + 11 = 25 - 3x          use distribution
5x + 30 + 11 = 25 - 3x          use addition
5x + 41 = 25 - 3x                  use addition and subtraction
8x = -16                                use division
x = -16/8
x = -2

So your answer is x = -2


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Answer:

The tree is 20.6 ft tall.

Step-by-step explanation:

Please check the attached graph.

From the diagram, it is clear that John is 5 ft tall is standing 20 feet away from a tree, making an angle of elevation to be 38⁰.

The diagram makes a right-angled triangle.

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Pythagorean Theorem:

For a right-angled triangle, with sides 'a' and 'b', the hypotenuse 'c' is defined as:

\:c=\sqrt{a^2+b^2}

substituting a=5, b=20

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