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Reptile [31]
3 years ago
6

3x^2-8x+4=0 Solve quadratic equations by completing the square.

Mathematics
2 answers:
vekshin13 years ago
7 0

Answer:

x=2,2/3

Step-by-step explanation:

Anarel [89]3 years ago
5 0

Answer:

<h2><u>x = ⅔ Or x = 2</u></h2>

Explanation:

3x² − 8x + 4 = 0

<em>Factor left side of equation</em>

(3x − 2)(x − 2) = 0

<em>Set factors equal to 0</em>

3x − 2 = 0 or x − 2 = 0

<h3>x = ⅔ or x = 2</h3>
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What type of decimal is this fraction:11/20 ?
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Three friends earned more than $200 washing cars they pay their parents $20 for supplies and divided the rest of the money equal
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A rocket is launched from a tower. The height of the rocket , y in feet, is related to the time after launch, x in seconds, by t
Nikolay [14]
<h3>Answer:  Max height = 455.6 feet</h3>

========================================================

Explanation:

The general equation

y = ax^2 + bx + c

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h = -b/(2a)

In this case, a = -16 and b = 147. This means,

h = -b/(2a)

h = -147/(2*(-16))

h = 4.59375

The x coordinate of the vertex is x = 4.59375

Plug this into the original equation to find the y coordinate of the vertex.

y = -16x^2+147x+118

y = -16(4.59375)^2+147(4.59375)+118

y = 455.640625

The vertex is located at (h,k) = (4.59375, 455.640625)

The max height of the rocket occurs at the vertex point. Therefore, the max height is y = 455.640625 feet which rounds to y = 455.6 feet

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3 years ago
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