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Tom [10]
3 years ago
7

I just need help with #21. I don’t know to figure it out. Please help. Thanks. :)

Mathematics
1 answer:
Karolina [17]3 years ago
3 0
1 and 3 are  angles of  depression
2 and 4 are angles of elevation.
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bija089 [108]

Answer:

-2.61803398875, -0.38196601125

or

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Step-by-step explanation:

First, expand. (2x+3)² = 4x²+12x+9=5

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Quadratic equations take the form ax²+bx+c = 0

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If you want decimal form: -2.61803398875, -0.38196601125

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