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alex41 [277]
3 years ago
8

What is the minimum point of the equation x^2+19=9x

Mathematics
1 answer:
azamat3 years ago
3 0

Answer:

The minimum point is (4.5, -1.25).

Step-by-step explanation:

x^2+19=9x

= x^2 - 9x + 19 = 0

Convert to Vertex form:

(x - 4.5)^2 - 4.5^2 + 19 = 0

= (x - 4.5)^2 - 1.25.

The minimum point is (4.5, -1.25).

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A building is 964 feet tall. Two people are standing on the ground directly west of the building. The
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Answer:

The distance from both of them = 1463.925  ft

Step-by-step explanation:

The building is 964 ft tall . 2 people are standing on the ground directly west of the building. The first person looks up at an angle of 62° to the top of the building while the second person did same at an angle of 26°. The distance between them can be computed below.

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The distance from the second person to the building = 1976.493 ft

Distance of the first person to the building

tan 62° = opposite/adjacent

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adjacent = 964/tan 62°

adjacent = 964/1.88072646535

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distance from the first person to the building = 512.568 ft

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<em>To write in standard form, we have to move the decimal point in  </em>

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<em>0.00342</em>

<em>Hope this helps.</em>

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3 years ago
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