2 years ago

The Polygons below are similar. Find the value of x. A. 4.5 B. 7.5 C. 12 D. 16

Mathematics

1 answer:

koban [17]2 years ago

3 0

I'm pretty sure that it is C. 12

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Am I correct? (Perfect Square Form)

natka813 [3]

Answer:

$(x -3 )^2 = 10$

Step-by-step explanation:

Given

$x^2 - 6x - 1 = 0$

Required: Express as a perfect square

$x^2 - 6x - 1 = 0$

Add 10 to both sides

$x^2 - 6x - 1 +10= 0+10$

$x^2 - 6x +9= 10$

Expand

$x^2 - 3x - 3x+9= 10$

Factorize:

$x(x - 3) - 3(x - 3)= 10$

Factorize:

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$(x -3 )^2 = 10$

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lord [1]

Is the question multiple choice?

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2 years ago

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patriot [66]

Answer:

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Step-by-step explanation:

7 0

2 years ago

Each morning a gardener uses 25 gallons of water from a barrel. Each afternoon, she adds 15 gallons of water to the barrel. By h

mr_godi [17]

Given :

Each morning a gardener uses 25 gallons of water from a barrel.

Each afternoon, she adds 15 gallons of water to the barrel.

To Find :

By how much has the volume of water in the barrel changed after 5 days.

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V = A × 5 gallons

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2 years ago

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valentinak56 [21]

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